Term ends May 11, 2028 · High confidence
20-year base term ended Jan 7, 2025
Held by 3SPINE, Inc.
Filed Jan 7, 2005 as application 11/031,780 · Granted Mar 8, 2011
Base term plus 1220 days of patent term adjustment (USPTO delay)
Today
2005
2028
Clock starts
Jan 7, 2005
Jan 7, 2005
Term ends
May 11, 2028
May 11, 2028
Granted
Mar 8, 2011
Mar 8, 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
1,220
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.
This patent's term runs 1220 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 7, 2005, when this application, 11/031,780, was filed | Jan 7, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1220 days, USPTO patent term adjustment record | May 11, 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 | May 11, 2028 | High confidence |
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 |
|---|---|---|---|
| Feb 14, 2005 Reel 16258, frame 883 | HH Spinal LLC | Sdgi Holdings, Inc. | Assignment of Assignor's Interest |
| Feb 14, 2005 Reel 16258, frame 891 | Humphreys, Steven C.; Hodges, Scott D. | HH Spinal LLC | Assignment of Assignor's Interest |
| Feb 14, 2005 Reel 16258, frame 894 | Peterman, Marc M.; Allard, Randall | Sdgi Holdings, Inc. | Assignment of Assignor's Interest |
| Sep 2, 2005 Reel 16488, frame 521 | HH Spinal LLC | Sdgi Holdings, Inc. | Corrective Assignment to Correct the Assignee's Address Previously Recorded on Reel 016258 Frame 0883. Assignor(S) Hereby Confirms the Correction of the Assignee's Address from Suite 50 to Suite 508. |
| Feb 11, 2008 Reel 20487, frame 391 | Sdgi Holdings, Inc. | Warsaw Orthopedic, Inc. | Merger |
| Apr 7, 2014 Reel 32618, frame 401 | Warsaw Orthopedic, Inc. | HH Spinal LLC | Assignment of Assignor's Interest |
| Dec 22, 2017 Reel 44471, frame 519 | HH Spinal LLC | International Surgical Sezc | Assignment of Assignor's Interest |
| Nov 21, 2022 Reel 61973, frame 694 | International Surgical Secz | 3SPINE Sezc | Change of Name |
| Jan 17, 2023 Reel 62391, frame 708 | 3SPINE Sezc | 3SPINE, Inc. | Certificate of Domestication with Name Change |
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
May 2028
Term ends May 11, 2028. No further fees fall due before then
Note
The 1220 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
233
later US patents cite this one
That is top 5% 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.