Term ended Jun 21, 2025 · High confidence
20-year base term ended Aug 5, 2023
Held by Tyler Fusion Technologies, LLC
Filed Feb 12, 2004 as application 10/777,411 · Granted Mar 22, 2011
Base term plus 686 days of patent term adjustment (USPTO delay)
Today
Term ended Jun 21, 2025
2003
2026
Clock starts
Aug 5, 2003
Aug 5, 2003
Term ended
Jun 21, 2025
Jun 21, 2025
Granted
Mar 22, 2011
Mar 22, 2011
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
686
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.
27
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 686 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 5, 2003, when application 10/634,950, the earliest non-provisional in its chain, was filed (this one was filed Feb 12, 2004) | Aug 5, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +686 days, USPTO patent term adjustment record | Jun 21, 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 | Jun 21, 2025 | High confidence |
This family
| US 7,204,853 | Term ended Sep 2024 | Sep 2024 |
| US 7,316,714 | Term ended Sep 2023 | Sep 2023 |
| US 7,909,869 | this patent Jun 2025 | Jun 2025 |
| Application PCT/US2004/025090 | PCT application no patent term | no patent term |
| US 7,753,958 | Lapsed on the fee record Jul 2022 | Jul 2022 |
| US 8,123,810 | In force Feb 2028 | Feb 2028 |
| Application 11/134,092 | Abandoned not computed | not computed |
| US 8,118,871 | Lapsed on the fee record Feb 2024 | Feb 2024 |
8 of 27 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 |
|---|---|---|---|
| Jun 29, 2005 Reel 16732, frame 318 | Gordon, Charles; Harbold, Corey | Flexuspine, Inc. | Assignment of Assignor's Interest |
| Apr 7, 2014 Reel 32618, frame 967 | Hanson, Heather S. | Southwest Research Institute | Assignment of Assignor's Interest |
| Apr 7, 2014 Reel 32618, frame 986 | Southwest Research Institute | Flexuspine, Inc., a Delaware Corporation | Assignment of Assignor's Interest |
| Sep 26, 2023 Reel 65025, frame 374 | Flexuspine, Inc. | Tyler Fusion Technologies, LLC | 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.
What's changing
Note
The 686 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
807
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.