Term ends Jun 11, 2029 · High confidence
20-year base term ended Oct 28, 2024
Filed Oct 28, 2004 as application 10/975,215 · Granted Mar 8, 2011
Base term plus 1687 days of patent term adjustment (USPTO delay)
Today
2004
2029
Clock starts
Oct 28, 2004
Oct 28, 2004
Term ends
Jun 11, 2029
Jun 11, 2029
Granted
Mar 8, 2011
Mar 8, 2011
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
1,687
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.
2
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 1687 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 Oct 28, 2004, when this application, 10/975,215, was filed | Oct 28, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1687 days, USPTO patent term adjustment record | Jun 11, 2029 | 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 | Jun 11, 2029 | High confidence |
This family
| US 7,903,637 | this patent Jun 2029 | Jun 2029 |
| US 8,971,312 | In force Jul 2027 | Jul 2027 |
The applications whose file history this site holds. The family may have others.
Assignments
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 |
|---|---|---|---|
| Oct 28, 2004 Reel 15937, frame 892 | Moore, Richard G.; Gunasekar, Guna D.; Lawson-shanks, Phillip E.; Shaw, Darryl W. | Mci, Inc. | Assignment of Assignor's Interest |
| Mar 29, 2007 Reel 19086, frame 11 | Mci, Inc. | Mci, LLC | Merger |
| Mar 29, 2007 Reel 19086, frame 27 | Mci, LLC | Verizon Business Global LLC | Change of Name |
| Apr 22, 2014 Reel 32734, frame 502 | Verizon Business Global LLC | Verizon Patent and Licensing Inc. | Assignment of Assignor's Interest |
| Nov 28, 2017 Reel 44626, frame 88 | Verizon Business Global LLC | Verizon Patent and Licensing Inc. | Corrective Assignment to Correct the Assignee Previously Recorded at Reel: 032734 Frame: 0502. Assignor(S) Hereby Confirms the Assignment. |
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
Jun 2029
Term ends Jun 11, 2029. No further fees fall due before then
Note
The 1687 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
50
later US patents cite this one
That is top 25% of utility patents granted in 2011 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.