Term ended Dec 24, 2024 · High confidence
20-year base term ended May 14, 2024
USPTO later recorded it as expired for non-payment on Aug 18, 2025.
Held by Intervalve Medical, Inc.
Filed May 19, 2010 as application 12/783,438 · Granted Jul 16, 2013
Base term plus 224 days of patent term adjustment (USPTO delay)
Today
Term ended Dec 24, 2024
2004
2026
Clock starts
May 14, 2004
May 14, 2004
Term ended
Dec 24, 2024
Dec 24, 2024
Granted
Jul 16, 2013
Jul 16, 2013
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
224
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,618,432, US 7,744,620, to Dec 24, 2024. The term already ends on or before that date, so the cap shortened nothing.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 224 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 14, 2004, when application 10/846,613, the earliest non-provisional in its chain, was filed (this one was filed May 19, 2010) | May 14, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +224 days, USPTO patent term adjustment record | Dec 24, 2024 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,618,432, US 7,744,620) | resolves to Dec 24, 2024, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | term ended | High confidence |
| USPTO status record | Recorded as expired for non-payment on Aug 18, 2025, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | Dec 24, 2024 | High confidence |
This family
| US 7,744,620 | In force May 2028 | May 2028 |
| US 7,618,432 | In force Dec 2026 | Dec 2026 |
| US 7,951,111 | In force Oct 2029 | Oct 2029 |
| Application PCT/US2009/060239 | PCT application no patent term | no patent term |
| US 8,486,102 | this patent Dec 2024 | Dec 2024 |
| US 8,900,264 | In force Oct 2030 | Oct 2030 |
| US 9,242,081 | In force Jun 2032 | Jun 2032 |
| Application PCT/US2011/051457 | PCT application no patent term | no patent term |
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, 2015 Reel 34848, frame 928 | Pedersen, Wesley; Van Tassel, Robert A.; Schwartz, Robert S.; Brucker, Gregory G.; Greenhalgh, Skott E. | Intervalve, Inc. | Assignment of Assignor's Interest |
| Jan 15, 2016 Reel 37500, frame 429 | Intervalve, Inc. | Oxford Finance LLC | Security Interest |
| Oct 25, 2017 Reel 43946, frame 420 | Oxford Finance LLC | Intervalve, Inc. | Release of Security Interest |
| Sep 12, 2018 Reel 46855, frame 290 | Intervalve, Inc. | Intervalve Medical, Inc. | 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 224 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,618,432, US 7,744,620, ends no earlier than this term, so it caps nothing.
Citations
16
later US patents cite this one
That is above the median of utility patents granted in 2013 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.