Term ends Sep 11, 2031 · High confidence
20-year base term ends Mar 26, 2030
Held by Aesculap AG
Filed Aug 18, 2014 as application 14/461,559 · Granted Nov 20, 2018
Base term plus 1074 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2010
2031
Clock starts
Mar 26, 2010
Mar 26, 2010
Term ends
Sep 11, 2031
Sep 11, 2031
Granted
Nov 20, 2018
Nov 20, 2018
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
1,074
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 9,277,962.
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.
5
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 1074 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 3 maintenance fees are paid so far. 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 26, 2010, when application 12/748,229, the earliest non-provisional in its chain, was filed (this one was filed Aug 18, 2014) | Mar 26, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1074 days, USPTO patent term adjustment record | Mar 4, 2033 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,277,962) | capped to Sep 11, 2031 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 11, 2031 | High confidence |
This family
| US 8,419,727 | In force Jun 2031 | Jun 2031 |
| US 8,827,992 | In force Oct 2032 | Oct 2032 |
| Application PCT/US2011/029958 | PCT application no patent term | no patent term |
| US 9,277,962 | In force Sep 2031 | Sep 2031 |
| US 10,130,411 | this patent Sep 2031 | Sep 2031 |
The applications whose file history this site holds. The family may have others.
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
Sep 2031
Term ends Sep 11, 2031. Maintenance fees still fall due before then
Note
The 1074 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 9,277,962.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2018 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.