Lapsed Mar 27, 2022 on the fee record · High confidence
20-year base term ends Feb 20, 2029
First maintenance fee unpaid; grace period ended.
Held by Tsunami Medtech, LLC
Filed Feb 20, 2009 as application 12/389,808 · Granted Mar 27, 2018
Base term, 20 years from filing, plus 508 days of patent term adjustment (USPTO delay)
Today
Lapsed Mar 27, 2022
2009
2030
Clock starts
Feb 20, 2009
Feb 20, 2009
No longer in force
Mar 27, 2022
Mar 27, 2022
Granted
Mar 27, 2018
Mar 27, 2018
Term would have run to
Jul 13, 2030
Jul 13, 2030
base term
patent term adjustment
after the term ends
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
508
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
10
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 Jul 13, 2030: its 20-year base term plus 508 days of term adjustment for prosecution delay. 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 Feb 20, 2009, when this application, 12/389,808, was filed | Feb 20, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +508 days, USPTO patent term adjustment record | Jul 13, 2030 | 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 | 0 of 3 maintenance fees paid | lapsed Mar 27, 2022 | High confidence |
| Computed term end | The steps above, in order | Mar 27, 2022 | High confidence |
This family
| US 9,924,992 | this patent Mar 2022 | Mar 2022 |
| US 8,721,632 | Lapsed on the fee record May 2022 | May 2022 |
| US 10,548,653 | In force Jul 2030 | Jul 2030 |
| US 10,595,925 | Lapsed on the fee record Mar 2024 | Mar 2024 |
| US 11,284,932 | In force Feb 2029 | Feb 2029 |
| US 11,179,187 | In force no later than Feb 2029 | no later than Feb 2029 |
| US 11,478,291 | In force Feb 2029 | Feb 2029 |
| US 11,141,210 | In force no later than Feb 2029 | no later than Feb 2029 |
8 of 10 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 |
|---|---|---|---|
| May 6, 2009 Reel 22648, frame 315 | Hoey, Michael; Shadduck, John H. | Tsunami Medtech, 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 508 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
146
later US patents cite this one
That is top 5% 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.