Lapsed Sep 22, 2023 on the fee record · High confidence
20-year base term ends Jul 8, 2030
Second maintenance fee unpaid; grace period ended.
Held by Knowles Electronics, LLC
Filed May 7, 2013 as application 13/888,796 · Granted Sep 22, 2015
Base term, 20 years from filing, plus 275 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Sep 22, 2023
2010
2030
Clock starts
Jul 8, 2010
Jul 8, 2010
No longer in force
Sep 22, 2023
Sep 22, 2023
Granted
Sep 22, 2015
Sep 22, 2015
Term would have run to
Jul 8, 2030
Jul 8, 2030
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
275
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,473,285.
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.
5
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 Jul 8, 2030: its 20-year base term plus 275 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Jul 8, 2010, when application 12/832,901, the earliest non-provisional in its chain, was filed (this one was filed May 7, 2013) | Jul 8, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +275 days, USPTO patent term adjustment record | Apr 9, 2031 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,473,285) | capped to Jul 8, 2030 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | lapsed Sep 22, 2023 | High confidence |
| Computed term end | The steps above, in order | Sep 22, 2023 | High confidence |
This family
| US 8,473,287 | In force Jul 2030 | Jul 2030 |
| Application PCT/US2011/032578 | PCT application no patent term | no patent term |
| US 8,473,285 | In force Jul 2030 | Jul 2030 |
| US 9,143,857 | this patent Sep 2023 | Sep 2023 |
| US 9,502,048 | In force Jul 2030 | Jul 2030 |
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 5, 2015 Reel 35097, frame 331 | Avendano, Carlos; Every, Mark | Audience, Inc. | Assignment of Assignor's Interest |
| Feb 25, 2016 Reel 37927, frame 424 | Audience, Inc. | Audience LLC | Change of Name |
| Feb 25, 2016 Reel 37927, frame 435 | Audience LLC | Knowles Electronics, LLC | Merger |
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
Note
The 275 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,473,285.
Citations
20
later US patents cite this one
That is top 25% 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.