Term ends May 4, 2029 · High confidence
20-year base term ends Mar 23, 2027
Held by Thoratec LLC
Filed Mar 23, 2007 as application 11/728,051 · Granted Nov 30, 2010
Base term plus 773 days of patent term adjustment (USPTO delay)
Today
2007
2029
Clock starts
Mar 23, 2007
Mar 23, 2007
Term ends
May 4, 2029
May 4, 2029
Granted
Nov 30, 2010
Nov 30, 2010
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
773
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
9
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 773 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 23, 2007, when this application, 11/728,051, was filed | Mar 23, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +773 days, USPTO patent term adjustment record | May 4, 2029 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 4, 2029 | High confidence |
This family
| US 7,841,976 | this patent May 2029 | May 2029 |
| US 9,364,592 | In force no later than Mar 2027 | no later than Mar 2027 |
| US 9,364,593 | In force Mar 2027 | Mar 2027 |
| US 9,717,833 | In force Mar 2027 | Mar 2027 |
| US 10,149,932 | In force no later than Mar 2027 | no later than Mar 2027 |
| US 10,864,309 | In force Jul 2027 | Jul 2027 |
| US 11,708,833 | In force Mar 2027 | Mar 2027 |
| US 12,404,858 | In force Mar 2027 | Mar 2027 |
8 of 9 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 5, 2007 Reel 20213, frame 44 | McBride, Mark W.; Boger, David A.; Campbell, Robert L.; Dillon, Gregory P.; Hambric, Stephen A.; Kunz, Robert F.; Mallison, Thomas M.; Runt, James P.; Walsh, Justin M. | The Penn State Research Foundation | Assignment of Assignor's Interest |
| Dec 5, 2007 Reel 20213, frame 750 | Leschinsky, Boris | Datascope Investment Corp. | Assignment of Assignor's Interest |
| Mar 17, 2010 Reel 24096, frame 743 | Datascope Corporation | Thoratec Corporation | Assignment of Assignor's Interest |
| May 3, 2017 Reel 42261, frame 587 | Thoratec Corporation | Thoratec LLC | Confirmatory Assignment |
| May 3, 2017 Reel 42261, frame 615 | Thoratec LLC | TC1 LLC | Assignment of Assignor's Interest |
| May 20, 2021 Reel 56297, frame 677 | Thoratec Corporation | Thoratec LLC | 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
May 2029
Term ends May 4, 2029. No further fees fall due before then
Note
The 773 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
594
later US patents cite this one
That is top 1% of utility patents granted in 2010 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.