Term ends Nov 19, 2026 · High confidence
20-year base term ended Mar 29, 2024
Held by West Technology Group, LLC
Filed Mar 29, 2004 as application 10/812,854 · Granted Jan 6, 2009
Base term plus 965 days of patent term adjustment (USPTO delay)
Today
2004
2026
Clock starts
Mar 29, 2004
Mar 29, 2004
Term ends
Nov 19, 2026
Nov 19, 2026
Granted
Jan 6, 2009
Jan 6, 2009
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
965
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
5
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 965 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Mar 29, 2004, when this application, 10/812,854, was filed | Mar 29, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +965 days, USPTO patent term adjustment record | Nov 19, 2026 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 19, 2026 | High confidence |
This family
| US 7,474,634 | this patent Nov 2026 | Nov 2026 |
| US 8,731,168 | Term ended Jan 2026 | Jan 2026 |
| US 8,929,530 | Term ended Mar 2024 | Mar 2024 |
| US 9,148,517 | Term ended Mar 2024 | Mar 2024 |
| US 9,762,735 | Term ended Mar 2024 | Mar 2024 |
The applications whose file history this site holds. The family may have others.
Assignments
The 40 most recent of 55 recorded documents are shown; the 15 earliest are not. Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Intrado Inc. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West Corporation | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West Direct, LLC | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West Notifications Group, Inc. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Cosmosis Corporation | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Intrado Communications Inc. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Intrado Communications of Virginia Inc. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Intrado Information System Holdings, Inc. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Intrado Command Systems, Inc. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | GEO911, Inc. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Positron Public Safety Systems Corp. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Masys Corporation | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Televox Software, Incorporated | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West Asset Management, Inc. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West Direct II, Inc. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West Interactive Corporation | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West International Corporation | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Northern Contact, Inc. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West Receivable Services, Inc. | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West Business Services, LLC | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West Facilities, LLC | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West at Home, LLC | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West Customer Management Group, LLC | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Asset Direct Mortgage, LLC | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Intercall Telecom Ventures, LLC | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Buydebtco, LLC | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | The Debt Depot, LLC | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | West Asset Purchasing, LLC | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Intrado International, LLC | Release of Security Interest |
| Dec 20, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Successor to Wachovia Bank, National Association | Stargate Management LLC | Release of Security Interest |
| Jan 31, 2023 Reel 62571, frame 18 | CX360, Inc.; West Technology Group, LLC (FKA Intrado Corporation, FKA West Corporation); Intrado Interactive Services Corporation (FKA West Interactive Services Corporation, FKA Cobalt Acquisition Company) | U.S. Bank Trust Company, National Association, as Collateral Agent | Notice of Grant of Security Interest (Second Lien) in Patents |
| Apr 3, 2023 Reel 63239, frame 876 | Intrado Corporation | West Technology Group, LLC | Change of Name |
| Apr 3, 2023 Reel 63239, frame 900 | West Corporation | Intrado Corporation | Change of Name |
| Nov 25, 2024 Reel 69438, frame 775 | UBS AG, Stamford Branch (as Successor to Credit Suisse AG, Cayman Islands Branch in Its Capacity as Collateral Agent) | Wilmington Trust, National Association, as the Successor Collateral Agent | Omnibus Assignment of Security Interest in Intellectual Property |
| Jul 14, 2026 Reel 75975, frame 65 | U.S. Bank Trust Company, National Association | Televox, Inc. (FKA Intrado Interactive Services Corporation); West Technology Group, LLC | Notice of Partial Release of Security Interest in Patents |
| Jul 14, 2026 reel/frame not recorded | U.S. Bank Trust Company, National Association | Televox, Inc. (FKA Intrado Interactive Services Corporation) | Notice of Partial Release of Security Interest in Patents |
| Jul 14, 2026 reel/frame not recorded | U.S. Bank Trust Company, National Association | West Technology Group, LLC | Notice of Partial Release of Security Interest in Patents |
| Oct 7, 2026 reel/frame not recorded | Wilmington Trust, National Association | West Corporation | Notice of Partial Release of Security Interest in Patents |
| Oct 7, 2026 reel/frame not recorded | Wilmington Trust, National Association | West Technology Group, LLC | Notice of Partial Release of Security Interest in Patents |
| Oct 7, 2026 Reel 76640, frame 108 | Wilmington Trust, National Association | West Corporation; West Technology Group, LLC | Notice of Partial Release of Security Interest in Patents |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Nov 2026
Term ends Nov 19, 2026. No further fees fall due before then
Note
The 965 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
27
later US patents cite this one
That is above the median of utility patents granted in 2009 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.