Term ends Dec 13, 2027 · High confidence
20-year base term ends Dec 13, 2027
Held by Cirrus Logic Inc.
Filed Apr 14, 2010 as application 12/759,900 · Granted Feb 12, 2013
Base term, 20 years from filing
Today
2007
2027
Clock starts
Dec 13, 2007
Dec 13, 2007
Term ends
Dec 13, 2027
Dec 13, 2027
Granted
Feb 12, 2013
Feb 12, 2013
base term
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.
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.
13
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 is its 20-year base term, with no adjustment for 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 Dec 13, 2007, when application 12/000,549, the earliest non-provisional in its chain, was filed (this one was filed Apr 14, 2010) | Dec 13, 2027 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 13, 2027 | High confidence |
This family
| US 7,714,660 | In force Dec 2027 | Dec 2027 |
| US 8,373,506 | this patent Dec 2027 | Dec 2027 |
| US 8,279,012 | In force Dec 2027 | Dec 2027 |
| US 8,183,931 | In force Dec 2027 | Dec 2027 |
| US 8,660,277 | In force Feb 2029 | Feb 2029 |
| US 9,306,448 | In force Oct 2028 | Oct 2028 |
| US 9,685,855 | In force Dec 2027 | Dec 2027 |
| US 9,673,700 | In force Dec 2027 | Dec 2027 |
8 of 13 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 |
|---|---|---|---|
| Apr 1, 2015 Reel 35353, frame 413 | Wolfson Microelectronics Ltd. | Cirrus Logic International (UK) Ltd. | Change of Name |
| Apr 1, 2015 Reel 35356, frame 96 | Wolfson Microelectronics PLC | Wolfson Microelectronics Ltd. | Change of Name |
| Jun 2, 2015 Reel 35806, frame 389 | Cirrus Logic International (UK) Ltd. | Cirrus Logic International Semiconductor Ltd. | Assignment of Assignor's Interest |
| Jun 15, 2015 Reel 35909, frame 190 | Cirrus Logic International Semiconductor Ltd. | Cirrus Logic 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
Dec 2027
Term ends Dec 13, 2027. No further fees fall due before then
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2013 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.