Lapsed Jan 30, 2026 on the fee record · High confidence
20-year base term ends May 4, 2032
Second maintenance fee unpaid; grace period ended.
Held by Psemi Corporation
Filed Mar 14, 2016 as application 15/068,985 · Granted Jan 30, 2018
Base term, 20 years from filing
Today
Lapsed Jan 30, 2026
2012
2032
Clock starts
May 4, 2012
May 4, 2012
No longer in force
Jan 30, 2026
Jan 30, 2026
Granted
Jan 30, 2018
Jan 30, 2018
Term would have run to
May 4, 2032
May 4, 2032
base term
after the term ends
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
25
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 4, 2032: its 20-year base term, with no 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 May 4, 2012, when application PCT/US2012/036455, the earliest non-provisional in its chain, was filed (this one was filed Mar 14, 2016) | May 4, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | 1 of 3 maintenance fees paid | lapsed Jan 30, 2026 | High confidence |
| Computed term end | The steps above, in order | Jan 30, 2026 | High confidence |
This family
| Application PCT/US2012/036455 | PCT application no patent term | no patent term |
| US 8,860,396 | In force May 2032 | May 2032 |
| US 9,362,826 | In force May 2032 | May 2032 |
| US 9,882,471 | this patent Jan 2026 | Jan 2026 |
| US 9,712,051 | In force May 2032 | May 2032 |
| Application PCT/US2017/023191 | PCT application no patent term | no patent term |
| US 10,389,235 | In force May 2032 | May 2032 |
| US 10,326,358 | In force Oct 2032 | Oct 2032 |
8 of 25 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 |
|---|---|---|---|
| May 4, 2016 Reel 38457, frame 193 | Giuliano, David | Arctic Sand Technologies, Inc. | Assignment of Assignor's Interest |
| May 11, 2016 Reel 38549, frame 966 | Arctic Sand Technologies, Inc. | Pacific Western Bank | Security Interest |
| Apr 5, 2017 Reel 41862, frame 180 | Pacific Western Bank | Arctic Sand Technologies, Inc. | Release of Security Interest |
| Sep 5, 2017 Reel 43754, frame 354 | Arctic Sand Technologies, Inc. | Peregrine Semiconductor Corporation | Assignment of Assignor's Interest |
| Feb 1, 2018 Reel 45221, frame 321 | Peregrine Semiconductor Corporation | Psemi Corporation | Change of Name |
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.
Citations
80
later US patents cite this one
That is top 5% 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.