Collateral for a security interest recorded Oct 8, 2021 (Ares Capital Corporation).
Term ends Jul 10, 2031 · High confidence
20-year base term ends Jul 23, 2030
Held by Stamps.com Inc.
Filed Jul 14, 2020 as application 16/929,031 · Granted Jan 2, 2024
Base term plus 352 days of patent term adjustment (USPTO delay)
Today
2010
2031
Clock starts
Jul 23, 2010
Jul 23, 2010
Term ends
Jul 10, 2031
Jul 10, 2031
Granted
Jan 2, 2024
Jan 2, 2024
base term
patent term adjustment
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
352
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 9,639,822, to Jul 10, 2031. The term already ends on or before that date, so the cap shortened nothing.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
3
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 352 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 0 of 1 maintenance fees are paid so far. 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 Jul 23, 2010, when application 12/842,695, the earliest non-provisional in its chain, was filed (this one was filed Jul 14, 2020) | Jul 23, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +352 days, USPTO patent term adjustment record | Jul 10, 2031 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,639,822) | resolves to Jul 10, 2031, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jul 10, 2031 | High confidence |
This family
| Application 12/842,695 | Abandoned not computed | not computed |
| US 9,639,822 | In force Dec 2032 | Dec 2032 |
| US 11,861,945 | this patent Jul 2031 | Jul 2031 |
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 |
|---|---|---|---|
| Jul 14, 2020 Reel 53208, frame 842 | Whitehouse, Harry T. | Psi Systems, Inc. | Assignment of Assignor's Interest |
| Mar 1, 2021 Reel 55450, frame 347 | Whitehouse, Harry T. | Stamps.com Inc. | Assignment of Assignor's 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.
What's changing
Jul 2031
Term ends Jul 10, 2031. Maintenance fees still fall due before then
Note
The 352 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 9,639,822, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2024 in our data have been cited yet, so we show the count and do not rank on it.
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.