Collateral for a security interest recorded Oct 19, 2026 (Bank of America).
Term ends Mar 10, 2028 · Medium confidence
20-year base term ended Apr 21, 2024
Why Medium: A parent in the chain could not be resolved.
Held by Acclarent, Inc.
Filed Apr 26, 2005 as application 11/116,118 · Granted May 18, 2010
Base term plus 1419 days of patent term adjustment (USPTO delay)
Today
2004
2028
Clock starts
Apr 21, 2004
Apr 21, 2004
Term ends
Mar 10, 2028
Mar 10, 2028
Granted
May 18, 2010
May 18, 2010
base term
patent term adjustment
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
1,419
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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 1419 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Apr 21, 2004, when application 10/829,917, the earliest non-provisional in its chain, was filed (this one was filed Apr 26, 2005); a parent in its chain could not be resolved (the next row) | Apr 21, 2024 | 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 | +1419 days, USPTO patent term adjustment record | Mar 10, 2028 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 10, 2028 | Medium confidence |
This family
| US 7,654,997 | Term ended Sep 2025 | Sep 2025 |
| US 7,361,168 | Term ended 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 | this patent 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 |
|---|---|---|---|
| Sep 16, 2005 Reel 17000, frame 755 | Chang, John Y.; Makower, Joshua; Vrany, Julia D.; Morriss, John H.; Muni, Ketan | Acclarent, Inc. | Assignment of Assignor's Interest |
| Oct 19, 2026 Reel 76710, frame 116 | Acclarent, Inc.; Acell, Inc.; Confluent Surgical, Inc.; Integra Lifesciences Braintree Inc.; Integra Lifesciences Corporation; Surgical Innovation Associates, Inc. | Bank Of America, As Administrative Agent | Grant of Patent Security Interest |
| Oct 20, 2026 Reel 76737, frame 399 | Acclarent, Inc.; Acell, Inc.; Confluent Surgical, Inc.; Integra Lifesciences Braintree Inc.; Integra Lifesciences Corporation; Surgical Innovation Associates, Inc. | Truist Bank, as Notes Collateral Agent | Grant of Patent 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.
What's changing
Mar 2028
Term ends Mar 10, 2028. No further fees fall due before then
Note
The 1419 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.