Term ended no later than Dec 30, 2022 · Medium confidence
20-year base term ended Dec 7, 2021
Held by Tsunami Medtech
Filed Oct 7, 2003 as application 10/681,625 · Granted Mar 9, 2010
Base term plus 388 days of patent term adjustment (USPTO delay)
Today
Ended no later than Dec 30, 2022
2001
2026
Clock starts
Dec 7, 2001
Dec 7, 2001
Ended no later than
Dec 30, 2022
Dec 30, 2022
Granted
Mar 9, 2010
Mar 9, 2010
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
388
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
40
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 388 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees were paid, so no fee lapse ended it. Confidence: Medium. 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 Dec 7, 2001, when application 10/017,582, the earliest non-provisional in its chain, was filed (this one was filed Oct 7, 2003) | Dec 7, 2021 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +388 days, USPTO patent term adjustment record | Dec 30, 2022 | 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 | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | no later than Dec 30, 2022 | Medium confidence |
This family
| US 6,508,816 | Term ended Aug 2018 | Aug 2018 |
| US 6,669,694 | Term ended Dec 2021 | Dec 2021 |
| US 6,911,028 | Term ended Aug 2018 | Aug 2018 |
| US 7,674,259 | this patent no later than Dec 2022 | no later than Dec 2022 |
| US 7,549,987 | Lapsed on the fee record Jun 2021 | Jun 2021 |
| US 7,892,229 | Term ended Aug 2022 | Aug 2022 |
| US 8,016,823 | Term ended May 2022 | May 2022 |
| US 8,444,636 | Term ended Jul 2023 | Jul 2023 |
8 of 40 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 24, 2006 Reel 18442, frame 294 | Shadduck, John H. | Tsunami Medtech | Assignment of Assignor's Interest |
| Oct 13, 2017 Reel 44261, frame 696 | Aegea Medical Inc. | Oxford Finance LLC, as Collateral Agent and as a Lender | Security Interest |
| Mar 1, 2018 Reel 45482, frame 1 | Oxford Finance LLC, as Collateral Agent | Aegea Medical Inc. | Release of Security 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
Note
The 388 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Dec 30, 2022. We will not guess the cap.
Citations
389
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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. Related patents and pending applications may cover overlapping subject matter.