Lapsed Jul 3, 2024 on the fee record · High confidence
20-year base term ended Mar 24, 2026
Third maintenance fee unpaid; grace period ended.
Filed Dec 29, 2008 as application 12/344,776 · Granted Jul 3, 2012
Base term, 20 years from filing, plus 272 days of patent term adjustment (USPTO delay)
Today
Lapsed Jul 3, 2024
2006
2026
Clock starts
Mar 24, 2006
Mar 24, 2006
No longer in force
Jul 3, 2024
Jul 3, 2024
Granted
Jul 3, 2012
Jul 3, 2012
Term would have run to
Dec 21, 2026
Dec 21, 2026
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
272
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Dec 21, 2026: its 20-year base term plus 272 days of term adjustment for prosecution delay. 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 Mar 24, 2006, when application 11/388,815, the earliest non-provisional in its chain, was filed (this one was filed Dec 29, 2008) | Mar 24, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +272 days, USPTO patent term adjustment record | Dec 21, 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 | 2 of 3 maintenance fees paid | lapsed Jul 3, 2024 | High confidence |
| Computed term end | The steps above, in order | Jul 3, 2024 | High confidence |
This family
| US 7,513,745 | In force Nov 2026 | Nov 2026 |
| US 8,210,812 | this patent Jul 2024 | Jul 2024 |
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 |
|---|---|---|---|
| Sep 4, 2020 Reel 54062, frame 1 | United Technologies Corporation | Raytheon Technologies Corporation | Change of Name |
| Mar 4, 2021 Reel 55659, frame 1 | United Technologies Corporation | Raytheon Technologies Corporation | Corrective Assignment to Correct the and Remove Patent Application Number 11886281 and Add Patent Application Number 14846874. to Correct the Receiving Party Address Previously Recorded at Reel: 054062 Frame: 0001. Assignor(S) Hereby Confirms the Change of Address. |
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 272 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is below the median of utility patents granted in 2012 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.