Collateral for a security interest recorded Oct 8, 2021 (Ares Capital Corporation).
Term ends Aug 5, 2027 · High confidence
20-year base term ended Jun 23, 2025
Held by Psi Systems, Inc.
Filed Jun 23, 2005 as application 11/165,636 · Granted Nov 9, 2010
Base term plus 773 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Jun 23, 2005
Jun 23, 2005
Term ends
Aug 5, 2027
Aug 5, 2027
Granted
Nov 9, 2010
Nov 9, 2010
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
773
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 773 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 Jun 23, 2005, when this application, 11/165,636, was filed | Jun 23, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +773 days, USPTO patent term adjustment record | Aug 5, 2027 | 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 | Aug 5, 2027 | High confidence |
This family
| US 7,831,524 | this patent Aug 2027 | Aug 2027 |
| Application 12/895,222 | Abandoned not computed | not computed |
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 6, 2005 Reel 17060, frame 778 | Whitehouse, Harry T. | Psi Systems, Inc. | Assignment of Assignor's Interest |
| Dec 7, 2015 Reel 37228, frame 900 | Psi Systems, Inc. | Wells Fargo Bank, National Association, as Administrative Agent | Security Interest |
| Oct 6, 2021 Reel 57721, frame 962 | Wells Fargo Bank | Psi Systems, Inc. | Release of Security Interest |
| Oct 8, 2021 Reel 57758, frame 116 | Stamps.com Inc.; Psi Systems, Inc.; Auctane LLC; Shippingeasy Group, Inc. | Ares Capital Corporation | Security Interest |
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
Aug 2027
Term ends Aug 5, 2027. No further fees fall due before then
Note
The 773 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
60
later US patents cite this one
That is top 25% of utility patents granted in 2010 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.