Term ends Oct 3, 2032 · High confidence
20-year base term ends May 23, 2032
Held by Reaction 35, LLC
Filed May 23, 2012 as application 13/479,085 · Granted Jan 27, 2015
Base term plus 133 days of patent term adjustment (USPTO delay)
Today
2012
2032
Clock starts
May 23, 2012
May 23, 2012
Term ends
Oct 3, 2032
Oct 3, 2032
Granted
Jan 27, 2015
Jan 27, 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
133
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 133 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 May 23, 2012, when this application, 13/479,085, was filed | May 23, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +133 days, USPTO patent term adjustment record | Oct 3, 2032 | 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 | Oct 3, 2032 | High confidence |
This family
| US 8,940,954 | this patent Oct 2032 | Oct 2032 |
| Application PCT/US2013/042491 | PCT application no patent term | no patent term |
| US 9,045,385 | In force May 2032 | May 2032 |
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 |
|---|---|---|---|
| Jul 3, 2012 Reel 28498, frame 541 | GRT, Inc. | Hook, Thomas W. | Security Agreement |
| Oct 3, 2013 Reel 31339, frame 310 | GRT, Inc. | Reaction 35, LLC | Assignment of Assignor's Interest |
| Dec 9, 2013 Reel 31778, frame 327 | GRT, Inc. | Reaction 35, LLC | Assignment of Assignor's Interest |
| Dec 9, 2013 Reel 31784, frame 696 | Hook, Thomas W. | Reaction 35, LLC | Release of Security Interest |
| Dec 9, 2013 Reel 31739, frame 98 | Sherman, Jeffrey H. | GRT, Inc. | Assignment of Assignor's Interest |
| Jun 29, 2015 Reel 35998, frame 651 | Julka, Vivek; Gadewar, Sagar; Stoimenov, Peter K.; Grosso, Philip; Sherman, Jeffrey H.; Zhang, Aihua; McFarland, Eric | GRT, 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
Oct 2032
Term ends Oct 3, 2032.
Note
The 133 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
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.