Term ends Feb 4, 2028 · High confidence
20-year base term ended Jan 31, 2025
Held by Arthrex, Inc.
Filed Jan 31, 2005 as application 11/047,551 · Granted Dec 27, 2011
Base term plus 1099 days of patent term adjustment (USPTO delay)
Today
2005
2028
Clock starts
Jan 31, 2005
Jan 31, 2005
Term ends
Feb 4, 2028
Feb 4, 2028
Granted
Dec 27, 2011
Dec 27, 2011
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
1,099
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.
30
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 1099 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Jan 31, 2005, when this application, 11/047,551, was filed | Jan 31, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1099 days, USPTO patent term adjustment record | Feb 4, 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 | Feb 4, 2028 | High confidence |
This family
| Application 11/047,159 | Abandoned not computed | not computed |
| US 8,083,746 | this patent Feb 2028 | Feb 2028 |
| Application PCT/US2005/015801 | PCT application no patent term | no patent term |
| US 8,496,662 | In force Jan 2028 | Jan 2028 |
| US 8,211,112 | In force Sep 2027 | Sep 2027 |
| US 8,888,785 | In force Jan 2029 | Jan 2029 |
| Application PCT/US2006/012172 | PCT application no patent term | no patent term |
| US 7,967,823 | In force May 2028 | May 2028 |
8 of 30 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 |
|---|---|---|---|
| Aug 9, 2005 Reel 16877, frame 561 | Novak, Vincent P. | Ibalance Medical LLC | Assignment of Assignor's Interest |
| Feb 6, 2009 Reel 22243, frame 510 | Ibalance Medical, Inc. | Venture Lending & Leasing IV, Inc.; Venture Lending & Leasing V, Inc. | Security Interest |
| Feb 6, 2009 reel/frame not recorded | Ibalance Medical, Inc. | Venture Lending & Leasing IV, Inc. | Security Interest |
| Feb 6, 2009 reel/frame not recorded | Ibalance Medical, Inc. | Venture Lending & Leasing V, Inc. | Security Interest |
| Apr 8, 2011 Reel 26096, frame 496 | Ibalance Medical, Inc. | Arthrex, 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
Feb 2028
Term ends Feb 4, 2028. No further fees fall due before then
Note
The 1099 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
544
later US patents cite this one
That is top 1% of utility patents granted in 2011 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.