Lapsed May 15, 2024 on the fee record · High confidence
20-year base term ends May 30, 2028
Third maintenance fee unpaid; grace period ended.
Held by BAE Systems, PLC
Filed Oct 28, 2008 as application 12/226,825 · Granted May 15, 2012
Base term, 20 years from filing, plus 852 days of patent term adjustment (USPTO delay)
Today
Lapsed May 15, 2024
2008
2030
Clock starts
May 30, 2008
May 30, 2008
No longer in force
May 15, 2024
May 15, 2024
Granted
May 15, 2012
May 15, 2012
Term would have run to
Sep 29, 2030
Sep 29, 2030
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
852
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.
52
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 Sep 29, 2030: its 20-year base term plus 852 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 May 30, 2008, when application PCT/GB2008/050390, the earliest non-provisional in its chain, was filed (this one was filed Oct 28, 2008) | May 30, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +852 days, USPTO patent term adjustment record | Sep 29, 2030 | 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 May 15, 2024 | High confidence |
| Computed term end | The steps above, in order | May 15, 2024 | High confidence |
This family
| Application 12/374,470 | Abandoned not computed | not computed |
| Application 11/547,773 | Abandoned not computed | not computed |
| Application 11/547,794 | Abandoned not computed | not computed |
| US 8,466,848 | Lapsed on the fee record Jun 2021 | Jun 2021 |
| US 8,076,591 | Lapsed on the fee record Dec 2015 | Dec 2015 |
| US 7,894,306 | In force Oct 2028 | Oct 2028 |
| US 8,177,348 | this patent May 2024 | May 2024 |
| US 7,986,398 | In force Feb 2029 | Feb 2029 |
8 of 52 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 |
|---|---|---|---|
| Oct 28, 2008 Reel 21786, frame 963 | Sidhu, Jagjit; McDonald, Jennifer Laura | BAE Systems, PLC | 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.
What's changing
Note
The 852 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
8
later US patents cite this one
That is above 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.