Term ends Jun 10, 2032 · High confidence
20-year base term ends Feb 25, 2031
Held by Littelfuse, Inc.
Filed May 24, 2011 as application 13/115,068 · Granted Jul 14, 2015
Base term plus 471 days of patent term adjustment (USPTO delay)
Today
2011
2032
Clock starts
Feb 25, 2011
Feb 25, 2011
Term ends
Jun 10, 2032
Jun 10, 2032
Granted
Jul 14, 2015
Jul 14, 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
471
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.
6
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 471 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 Feb 25, 2011, when application 13/035,791, the earliest non-provisional in its chain, was filed (this one was filed May 24, 2011) | Feb 25, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +471 days, USPTO patent term adjustment record | Jun 10, 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 | Jun 10, 2032 | High confidence |
This family
| US 9,320,135 | In force Jul 2031 | Jul 2031 |
| Application PCT/US2011/026389 | PCT application no patent term | no patent term |
| US 9,224,728 | In force Apr 2032 | Apr 2032 |
| Application PCT/US2011/034379 | PCT application no patent term | no patent term |
| Application PCT/US2011/037813 | PCT application no patent term | no patent term |
| US 9,082,622 | this patent Jun 2032 | Jun 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 |
|---|---|---|---|
| May 25, 2011 Reel 26337, frame 663 | Fleming, Robert; Graydon, Bhret; Vasquez, Daniel; Wu, Junjun; Razavi, Farhad | Shocking Technologies, Inc. | Assignment of Assignor's Interest |
| Nov 19, 2012 Reel 29339, frame 761 | Shocking Technologies, Inc. | Littlefuse, Inc. | Security Agreement |
| Jan 23, 2014 Reel 32123, frame 747 | Shocking Technologies, Inc. | Littelfuse, 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
Jun 2032
Term ends Jun 10, 2032. Maintenance fees still fall due before then
Note
The 471 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
11
later US patents cite this one
That is above 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.