Term ended Dec 23, 2025 · High confidence
20-year base term ended Aug 4, 2024
Held by C.R. Bard, Inc.
Filed Aug 4, 2004 as application 10/912,601 · Granted Apr 27, 2010
Base term plus 506 days of patent term adjustment (USPTO delay)
Today
Term ended Dec 23, 2025
2004
2026
Clock starts
Aug 4, 2004
Aug 4, 2004
Term ended
Dec 23, 2025
Dec 23, 2025
Granted
Apr 27, 2010
Apr 27, 2010
base term
patent term adjustment
after the term ends
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
506
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.
205
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 506 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Aug 4, 2004, when this application, 10/912,601, was filed | Aug 4, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +506 days, USPTO patent term adjustment record | Dec 23, 2025 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Dec 23, 2025 | High confidence |
This family
| US 7,331,992 | Term ended Feb 2022 | Feb 2022 |
| US 6,878,162 | Term ended Mar 2023 | Mar 2023 |
| Application 10/275,425 | Abandoned not computed | not computed |
| US 7,704,267 | this patent Dec 2025 | Dec 2025 |
| US 7,476,246 | Term ended Jun 2026 | Jun 2026 |
| US 7,517,321 | Term ended Oct 2025 | Oct 2025 |
| US 8,109,885 | Lapsed on the fee record Feb 2024 | Feb 2024 |
| Application 60/689,034 | Provisional application no patent term | no patent term |
8 of 205 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 10, 2004 Reel 16061, frame 828 | Tessmer, Alexander W. | C. R. Bard, Inc. | Assignment of Assignor's Interest |
| Mar 9, 2005 Reel 15867, frame 17 | Tessmer, Alexander W. | C.R. Bard, 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
The 506 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
59
later US patents cite this one
That is top 25% 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
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.