Lapsed Jan 27, 2019 on the fee record · High confidence
20-year base term ends Jan 19, 2027
First maintenance fee unpaid; grace period ended.
Held by Flexuspine, Inc.
Filed Jan 19, 2007 as application 11/655,787 · Granted Jan 27, 2015
Base term, 20 years from filing, plus 484 days of patent term adjustment (USPTO delay)
Today
Lapsed Jan 27, 2019
2007
2028
Clock starts
Jan 19, 2007
Jan 19, 2007
No longer in force
Jan 27, 2019
Jan 27, 2019
Granted
Jan 27, 2015
Jan 27, 2015
Term would have run to
May 17, 2028
May 17, 2028
base term
patent term adjustment
after the term ends
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
484
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
6
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to May 17, 2028: its 20-year base term plus 484 days of term adjustment for prosecution delay. 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 19, 2007, when this application, 11/655,787, was filed | Jan 19, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +484 days, USPTO patent term adjustment record | May 17, 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 | 0 of 3 maintenance fees paid | lapsed Jan 27, 2019 | High confidence |
| Computed term end | The steps above, in order | Jan 27, 2019 | High confidence |
This family
| US 7,959,677 | Lapsed on the fee record Jun 2019 | Jun 2019 |
| US 9,066,811 | In force Apr 2028 | Apr 2028 |
| US 8,597,358 | Lapsed on the fee record Dec 2025 | Dec 2025 |
| US 8,940,022 | this patent Jan 2019 | Jan 2019 |
| US 8,377,098 | Lapsed on the fee record Feb 2021 | Feb 2021 |
| Application PCT/US2008/051346 | PCT application no patent term | no patent term |
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 |
|---|---|---|---|
| Apr 4, 2007 Reel 19166, frame 907 | Landry, Michael E.; Wagner, Erik J.; Schular, Michael S. | Flexuspine, 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 484 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
35
later US patents cite this one
That is top 25% of utility patents granted in 2015 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.