Also listed on Spherical IP, LLC., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Feb 11, 2033 · High confidence
20-year base term ends Sep 12, 2031
Held by Formtec, LLC.
Filed Sep 12, 2011 as application 13/199,910 · Granted Mar 24, 2015
Base term plus 518 days of patent term adjustment (USPTO delay)
Today
2011
2033
Clock starts
Sep 12, 2011
Sep 12, 2011
Term ends
Feb 11, 2033
Feb 11, 2033
Granted
Mar 24, 2015
Mar 24, 2015
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
518
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.
19
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 518 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 Sep 12, 2011, when this application, 13/199,910, was filed | Sep 12, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +518 days, USPTO patent term adjustment record | Feb 11, 2033 | 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 11, 2033 | High confidence |
This family
| US 8,985,993 | this patent Feb 2033 | Feb 2033 |
| US 9,161,549 | In force no later than Feb 2032 | no later than Feb 2032 |
| US 9,713,341 | In force no later than Sep 2031 | no later than Sep 2031 |
| US 9,022,772 | In force no later than Jan 2032 | no later than Jan 2032 |
| US 9,089,242 | In force no later than Jan 2032 | no later than Jan 2032 |
| Application 13/374,441 | Pending not computed | not computed |
| Application PCT/US2012/000392 | PCT application no patent term | no patent term |
| Application PCT/US2012/000391 | PCT application no patent term | no patent term |
8 of 19 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 |
|---|---|---|---|
| Nov 25, 2013 Reel 31807, frame 631 | Wolff, James B. | Spherical IP, LLC. | Assignment of Assignor's Interest |
| Apr 22, 2014 Reel 32816, frame 840 | Spherical IP, LLC. | Formtec, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Feb 2033
Term ends Feb 11, 2033. No further fees fall due before then
Note
The 518 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
That is below the median 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.