Term ended no later than Aug 17, 2025 · Medium confidence
20-year base term ended Aug 4, 2024
Held by Acclarent, Inc.
Filed Aug 4, 2004 as application 10/912,578 · Granted Apr 22, 2008
Base term plus 378 days of patent term adjustment (USPTO delay)
Today
Ended no later than Aug 17, 2025
2004
2026
Clock starts
Aug 4, 2004
Aug 4, 2004
Ended no later than
Aug 17, 2025
Aug 17, 2025
Granted
Apr 22, 2008
Apr 22, 2008
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
378
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.
78
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 378 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 Aug 4, 2004, when this application, 10/912,578, was filed | Aug 4, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +378 days, USPTO patent term adjustment record | Aug 17, 2025 | 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 Aug 17, 2025 | Medium confidence |
This family
| US 7,654,997 | Term ended Sep 2025 | Sep 2025 |
| US 7,361,168 | this patent no later than Aug 2025 | no later than Aug 2025 |
| Application 10/944,270 | Abandoned not computed | not computed |
| US 7,462,175 | Term ended Sep 2025 | Sep 2025 |
| US 7,720,521 | In force Mar 2028 | Mar 2028 |
| US 7,803,150 | In force Apr 2028 | Apr 2028 |
| Application 11/193,020 | Abandoned not computed | not computed |
| US 7,410,480 | Term ended Sep 2024 | Sep 2024 |
8 of 78 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 9, 2004 Reel 16058, frame 645 | Makower, Joshua; Chang, John Y.; Vrany, Julia D.; Walke, Amrish Jayprakash | Exploramed NC1, Inc., a Delaware Corporation | Assignment of Assignor's Interest |
| Oct 30, 2006 Reel 18451, frame 642 | Exploramed NC1, Inc. | Acclarent, Inc. | Change of Name |
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
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 378 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 Aug 17, 2025. We will not guess the cap.
Citations
1,704
later US patents cite this one
That is top 1% of utility patents granted in 2008 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.