Term ended Jan 27, 2026 · High confidence
20-year base term ended Jan 27, 2026
Filed Feb 25, 2008 as application 12/036,356 · Granted Mar 1, 2011
Base term plus 290 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Jan 27, 2026
2006
2026
Clock starts
Jan 27, 2006
Jan 27, 2006
Term ended
Jan 27, 2026
Jan 27, 2026
Granted
Mar 1, 2011
Mar 1, 2011
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
290
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,337,081.
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.
7
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 290 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Jan 27, 2006, when application 11/341,802, the earliest non-provisional in its chain, was filed (this one was filed Feb 25, 2008) | Jan 27, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +290 days, USPTO patent term adjustment record | Nov 13, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,337,081) | capped to Jan 27, 2026 | 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 | Jan 27, 2026 | High confidence |
This family
| US 7,337,081 | Lapsed on the fee record Feb 2020 | Feb 2020 |
| US 7,899,630 | this patent Jan 2026 | Jan 2026 |
| US 8,666,688 | In force Oct 2028 | Oct 2028 |
| US 8,121,801 | Term ended Oct 2026 | Oct 2026 |
| US 8,930,153 | Term ended Jan 2026 | Jan 2026 |
| US 12,061,218 | Term ended Oct 2026 | Oct 2026 |
| Application 18/741,147 | Pending 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 |
|---|---|---|---|
| Jul 27, 2023 Reel 64398, frame 727 | Kagan, Erran | Electro Industries/Gauge Tech | Assignment of Assignor's Interest |
| Aug 31, 2023 Reel 64789, frame 396 | E.I. Electronics, Inc. Formerly Doing Business as Electro Industries/Gauge Tech | Aeek Holdings, Inc. | Change of Name |
| Sep 6, 2023 Reel 64813, frame 108 | Aeek Holdings, Inc. Formerly Doing Business as Electro Industries/Gauge Tech | Ei Electronics LLC D/B/A Electro Industries/Gauge Tech | 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.
What's changing
Note
The 290 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 7,337,081.
Citations
95
later US patents cite this one
That is top 10% of utility patents granted in 2011 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.