Lapsed Aug 26, 2026 on the fee record · High confidence
20-year base term ends Jul 15, 2029
Third maintenance fee unpaid; grace period ended.
Held by Aker Solutions Limited
Filed Feb 15, 2011 as application 13/059,121 · Granted Aug 26, 2014
Base term, 20 years from filing, plus 377 days of patent term adjustment (USPTO delay)
Today
Lapsed Aug 26, 2026
2009
2030
Clock starts
Jul 15, 2009
Jul 15, 2009
No longer in force
Aug 26, 2026
Aug 26, 2026
Granted
Aug 26, 2014
Aug 26, 2014
Term would have run to
Jul 27, 2030
Jul 27, 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
377
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.
27
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 Jul 27, 2030: its 20-year base term plus 377 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 Jul 15, 2009, when application PCT/GB2009/001783, the earliest non-provisional in its chain, was filed (this one was filed Feb 15, 2011) | Jul 15, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +377 days, USPTO patent term adjustment record | Jul 27, 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 Aug 26, 2026 | High confidence |
| Computed term end | The steps above, in order | Aug 26, 2026 | High confidence |
This family
| US 8,813,786 | Lapsed on the fee record Aug 2022 | Aug 2022 |
| US 8,813,852 | this patent Aug 2026 | Aug 2026 |
| US 8,746,347 | Lapsed on the fee record Jun 2026 | Jun 2026 |
| US 8,678,093 | In force Jun 2032 | Jun 2032 |
| US 8,973,451 | In force Aug 2032 | Aug 2032 |
| US 9,141,130 | In force Dec 2031 | Dec 2031 |
| US 9,121,238 | In force Feb 2032 | Feb 2032 |
| US 9,244,482 | In force Mar 2032 | Mar 2032 |
8 of 27 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 |
|---|---|---|---|
| Feb 15, 2011 Reel 25809, frame 719 | Thomson, George Skelton | Aker Subsea Limited | Assignment of Assignor's Interest |
| Mar 3, 2017 Reel 41447, frame 916 | Aker Subsea Limited | Aker Solutions Limited | Change of Name |
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 377 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2014 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.