Term ends Jul 31, 2034 · High confidence
20-year base term ends Mar 11, 2033
Held by Interventional Spine, Inc.
Filed Feb 26, 2015 as application 14/424,412 · Granted Feb 6, 2018
Base term plus 507 days of patent term adjustment (USPTO delay)
Today
2013
2034
Clock starts
Mar 11, 2013
Mar 11, 2013
Term ends
Jul 31, 2034
Jul 31, 2034
Granted
Feb 6, 2018
Feb 6, 2018
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
507
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
3
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 507 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 Mar 11, 2013, when application 13/794,067, the earliest non-provisional in its chain, was filed (this one was filed Feb 26, 2015) | Mar 11, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +507 days, USPTO patent term adjustment record | Jul 31, 2034 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jul 31, 2034 | High confidence |
This family
| Application 13/794,067 | Abandoned not computed | not computed |
| Application PCT/US2013/057144 | PCT application no patent term | no patent term |
| US 9,883,951 | this patent Jul 2034 | Jul 2034 |
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 |
|---|---|---|---|
| Mar 10, 2015 Reel 35127, frame 728 | Lopez, Rudolf Morgenstern | Interventional Spine, Inc. | Assignment of Assignor's Interest |
| Apr 8, 2020 Reel 52349, frame 156 | Interventional Spine, Inc. | DePuy Synthes Products, Inc. | Corrective Assignment to Correct the Property Number Previously Recorded at Reel: 14913 Frame: 103. Assignor(S) Hereby Confirms the Assignment. |
| Apr 8, 2020 Reel 52349, frame 752 | Interventional Spine, Inc. | DePuy Synthes Products, Inc. | Corrective Assignment to Correct the Property Number Previously Recorded at Reel: 45065 Frame: 001. Assignor(S) Hereby Confirms the Assignment. |
| Aug 11, 2020 Reel 54097, frame 590 | Interventional Spine, Inc. | DePuy Synthes Products, Inc. | Corrective Assignment to Correct the Incorrectly Recorded Patent Properties (US 9277928 and US 9855058) Previously Recorded on Reel 041913 Frame 0103. Assignor(S) Hereby Confirms the Assignment. |
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
Jul 2034
Term ends Jul 31, 2034. Maintenance fees still fall due before then
Note
The 507 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
39
later US patents cite this one
That is top 10% of utility patents granted in 2018 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.