Term ended Oct 7, 2025 · High confidence
20-year base term ended Oct 7, 2025
Held by Percept Technologies Inc.
Filed Jan 11, 2013 as application 13/739,929 · Granted Apr 21, 2015
Base term, 20 years from filing
Today
Term ended Oct 7, 2025
2005
2026
Clock starts
Oct 7, 2005
Oct 7, 2005
Term ended
Oct 7, 2025
Oct 7, 2025
Granted
Apr 21, 2015
Apr 21, 2015
base term
after the term ends
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,758,185, US 7,918,556, US 8,353,594, to Oct 7, 2025. The term already ends on or before that date, so the cap shortened nothing.
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.
62
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees were paid, so no fee lapse ended it. 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 7, 2005, when application 11/245,756, the earliest non-provisional in its chain, was filed (this one was filed Jan 11, 2013) | Oct 7, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,758,185, US 7,918,556, US 8,353,594) | resolves to Oct 7, 2025, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Oct 7, 2025 | High confidence |
This family
| Application 11/245,756 | Abandoned not computed | not computed |
| US 7,758,185 | Term ended Oct 2025 | Oct 2025 |
| US 7,918,556 | Lapsed on the fee record Apr 2023 | Apr 2023 |
| US 8,353,594 | Lapsed on the fee record Jan 2025 | Jan 2025 |
| US 9,010,929 | this patent Oct 2025 | Oct 2025 |
| US 9,155,077 | In force Sep 2033 | Sep 2033 |
| US 11,428,937 | Lapsed on the fee record Aug 2026 | Aug 2026 |
| US 8,696,113 | Term ended Oct 2025 | Oct 2025 |
8 of 62 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Jun 4, 2013 Reel 30546, frame 128 | Lewis, Scott W. | Percept Technologies Inc. | Assignment of Assignor's 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.
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Alerts on its grants, lapses and transfers.
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,758,185, US 7,918,556, US 8,353,594, ends no earlier than this term, so it caps nothing.
Citations
351
later US patents cite this one
That is top 1% of utility patents granted in 2015 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.