Lapsed May 3, 2024 on the fee record · Low confidence
20-year base term ends Jan 3, 2028
Second maintenance fee unpaid; grace period ended.
Filed Apr 9, 2010 as application 12/757,687 · Granted May 3, 2016
Base term, 20 years from filing
Today
Lapsed May 3, 2024
2008
2028
Clock starts
Jan 3, 2008
Jan 3, 2008
No longer in force
May 3, 2024
May 3, 2024
Granted
May 3, 2016
May 3, 2016
Term would have run to
Jan 3, 2028
Jan 3, 2028
base term
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
None
Term adjustment
No prosecution delay on this record.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
1 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.
3
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 3, 2028: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Low. 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 3, 2008, when application PCT/US2008/000014, the earliest non-provisional in its chain, was filed (this one was filed Apr 9, 2010); a parent in its chain could not be resolved (the next row) | Jan 3, 2028 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | lapsed May 3, 2024 | High confidence |
| Computed term end | The steps above, in order | May 3, 2024 | Low confidence |
This family
| US 9,326,857 | this patent May 2024 | May 2024 |
| US 9,107,750 | Lapsed on the fee record Aug 2023 | Aug 2023 |
2 of 3 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 |
|---|---|---|---|
| Oct 23, 2012 Reel 29208, frame 1 | Fann, James I. | Mitralsolutions, Inc. | Assignment of Assignor's Interest |
| Oct 24, 2012 Reel 29209, frame 466 | Mitralsolutions, Inc. | ST. Jude Medical, Cardiology Division, Inc. | Assignment of Assignor's Interest |
| Nov 8, 2012 Reel 29313, frame 99 | Cartledge, Richard | Mitralsolutions, Inc. | Assignment of Assignor's Interest |
| Feb 20, 2013 Reel 29872, frame 337 | Lee, Leonard Y. | Mitralsolutions, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than May 3, 2024. We will not guess the cap.
Citations
127
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.