Lapsed Jun 7, 2024 on the fee record · High confidence
20-year base term ends May 19, 2030
Second maintenance fee unpaid; grace period ended.
Held by Quantar Solutions Limited
Filed Dec 22, 2011 as application 13/322,298 · Granted Jun 7, 2016
Base term, 20 years from filing, plus 251 days of patent term adjustment (USPTO delay)
Today
Lapsed Jun 7, 2024
2010
2031
Clock starts
May 19, 2010
May 19, 2010
No longer in force
Jun 7, 2024
Jun 7, 2024
Granted
Jun 7, 2016
Jun 7, 2016
Term would have run to
Jan 25, 2031
Jan 25, 2031
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
251
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
8
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 Jan 25, 2031: its 20-year base term plus 251 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 19, 2010, when application PCT/GB2010/050818, the earliest non-provisional in its chain, was filed (this one was filed Dec 22, 2011) | May 19, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +251 days, USPTO patent term adjustment record | Jan 25, 2031 | 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 | 1 of 3 maintenance fees paid | lapsed Jun 7, 2024 | High confidence |
| Computed term end | The steps above, in order | Jun 7, 2024 | High confidence |
This family
| US 9,363,279 | this patent Jun 2024 | Jun 2024 |
| US 9,762,605 | Lapsed on the fee record Sep 2025 | Sep 2025 |
| US 10,122,751 | Grace period ended Jan 2031 | Jan 2031 |
| US 10,749,891 | Lapsed on the fee record Aug 2024 | Aug 2024 |
| US 11,425,159 | Lapsed on the fee record Aug 2026 | Aug 2026 |
| US 12,058,166 | In force May 2030 | May 2030 |
| Application 18/739,438 | Pending not computed | not computed |
7 of 8 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 |
|---|---|---|---|
| Dec 22, 2011 Reel 27432, frame 371 | Evrard, Phillipe | Quantar Solutions 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.
What's changing
Note
The 251 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
104
later US patents cite this one
That is top 5% of utility patents granted in 2016 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.