Term ended Oct 18, 2026 · Medium confidence
20-year base term ended Mar 16, 2025
Why Medium: A parent in the chain could not be resolved.
Held by Trimble Navigation Limited
Filed Jul 25, 2007 as application 11/881,121 · Granted Nov 23, 2010
Base term plus 581 days of patent term adjustment (USPTO delay)
Today
Term ended Oct 18, 2026
2005
2026
Clock starts
Mar 16, 2005
Mar 16, 2005
Term ended
Oct 18, 2026
Oct 18, 2026
Granted
Nov 23, 2010
Nov 23, 2010
base term
patent term adjustment
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
581
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.
4
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 581 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. Confidence: Medium. 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 Mar 16, 2005, when application 11/082,041, the earliest non-provisional in its chain, was filed (this one was filed Jul 25, 2007); a parent in its chain could not be resolved (the next row) | Mar 16, 2025 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +581 days, USPTO patent term adjustment record | Oct 18, 2026 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Oct 18, 2026 | Medium confidence |
This family
| US 7,323,673 | Term ended Mar 2025 | Mar 2025 |
| US 7,838,808 | this patent Oct 2026 | Oct 2026 |
2 of 4 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 |
|---|---|---|---|
| Jul 25, 2007 Reel 19663, frame 574 | Ake, Duwain K. | Apache Technologies, Inc. | Assignment of Assignor's Interest |
| Sep 21, 2009 Reel 23254, frame 192 | Apache Technologies, Inc. | Trimble Navigation Limited | 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
Note
The 581 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
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.