Also listed on Adaptive Technologies, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 4, 2027 · High confidence
20-year base term ends Dec 4, 2027
Held by Gentex Corporation
Filed Jan 22, 2010 as application 12/691,821 · Granted Dec 21, 2010
Base term, 20 years from filing
Today
2007
2027
Clock starts
Dec 4, 2007
Dec 4, 2007
Term ends
Dec 4, 2027
Dec 4, 2027
Granted
Dec 21, 2010
Dec 21, 2010
base term
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 7,703,572, to Dec 4, 2027. 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.
9
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 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 Dec 4, 2007, when application 11/949,850, the earliest non-provisional in its chain, was filed (this one was filed Jan 22, 2010) | Dec 4, 2027 | 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 7,703,572) | resolves to Dec 4, 2027, 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 | In force | High confidence |
| Computed term end | The steps above, in order | Dec 4, 2027 | High confidence |
This family
| US 7,206,425 | Term ended Jul 2025 | Jul 2025 |
| Application PCT/US2004/001912 | PCT application no patent term | no patent term |
| US 7,457,428 | In force Mar 2027 | Mar 2027 |
| Application PCT/US2007/073867 | PCT application no patent term | no patent term |
| Application PCT/US2007/086381 | PCT application no patent term | no patent term |
| US 7,703,572 | In force Dec 2027 | Dec 2027 |
| US 8,285,408 | In force Nov 2030 | Nov 2030 |
| US 7,854,294 | this patent Dec 2027 | Dec 2027 |
8 of 9 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 |
|---|---|---|---|
| Mar 28, 2011 Reel 26034, frame 656 | Adaptive Technologies, Inc. | Aegisound LLC | Assignment of Assignor's Interest |
| May 21, 2015 Reel 35689, frame 922 | Du, Yu; Homma, Kenji; Vaudrey, Michael A. | Adaptive Technologies, Inc. | Assignment of Assignor's Interest |
| Sep 2, 2020 Reel 53676, frame 980 | Aegisound, LLC | Gentex Corporation | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2027
Term ends Dec 4, 2027. No further fees fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,703,572, ends no earlier than this term, so it caps nothing.
Citations
10
later US patents cite this one
That is above the median 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.