Term ends Feb 28, 2034 · High confidence
20-year base term ends Jan 29, 2034
Held by Turbett Surgical, Inc.
Filed Jan 29, 2014 as application 14/167,691 · Granted Apr 2, 2019
Base term plus 30 days of patent term adjustment (USPTO delay)
Today
2014
2034
Clock starts
Jan 29, 2014
Jan 29, 2014
Term ends
Feb 28, 2034
Feb 28, 2034
Granted
Apr 2, 2019
Apr 2, 2019
base term
patent term adjustment
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
30
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.
25
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 30 days past its 20-year base term on prosecution delay. 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 Jan 29, 2014, when this application, 14/167,691, was filed | Jan 29, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +30 days, USPTO patent term adjustment record | Feb 28, 2034 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Feb 28, 2034 | High confidence |
This family
| US 8,002,965 | In force Sep 2028 | Sep 2028 |
| US 8,702,926 | Term ended May 2026 | May 2026 |
| US 9,244,078 | Term ended Apr 2026 | Apr 2026 |
| US 10,245,335 | this patent Feb 2034 | Feb 2034 |
| US 9,616,368 | In force Jan 2034 | Jan 2034 |
| US 9,724,438 | In force Jan 2034 | Jan 2034 |
| Application PCT/US2016/025262 | PCT application no patent term | no patent term |
| US 10,226,728 | In force Jan 2034 | Jan 2034 |
8 of 25 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 |
|---|---|---|---|
| Jan 29, 2014 Reel 32083, frame 823 | Turbett, Robert E.; Richmond, Richard D. | Turbett Surgical LLC | Assignment of Assignor's Interest |
| Jan 29, 2016 Reel 37650, frame 729 | Turbett, Robert E.; Richmond, Richard D. | Turbett Surgical LLC | Change of Assignee Address |
| Oct 22, 2019 Reel 50787, frame 830 | Turbett Surgical LLC | Turbett Surgical, Inc. | Change of Name |
| Jun 12, 2025 Reel 72158, frame 734 | Turbett Surgical, Inc. | Turbett Surgical, Inc. | Change of Address for Turbett Surgical, Inc. |
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
Feb 2034
Term ends Feb 28, 2034. Maintenance fees still fall due before then
Note
The 30 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
30
later US patents cite this one
That is top 10% of utility patents granted in 2019 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.