Term ends Aug 25, 2033 · High confidence
20-year base term ends May 31, 2031
Held by CSR Technology Inc.
Filed May 31, 2011 as application 13/149,684 · Granted Feb 10, 2015
Base term plus 817 days of patent term adjustment (USPTO delay)
Today
2011
2033
Clock starts
May 31, 2011
May 31, 2011
Term ends
Aug 25, 2033
Aug 25, 2033
Granted
Feb 10, 2015
Feb 10, 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
817
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.
This patent's term runs 817 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 31, 2011, when this application, 13/149,684, was filed | May 31, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +817 days, USPTO patent term adjustment record | Aug 25, 2033 | 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 | Aug 25, 2033 | High confidence |
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 31, 2011 Reel 26365, frame 233 | Bradshaw, Elliott; Gidofalvi, Zoltan; Willey, Peter | Zoran Corporation | Assignment of Assignor's Interest |
| Jan 18, 2012 Reel 27550, frame 695 | Zoran Corporation | CSR Technology Inc. | Assignment of Assignor's Interest |
| May 21, 2013 Reel 30456, frame 468 | CSR Technology Inc. | CSR Imaging US, LP | Assignment of Assignor's Interest |
| Sep 21, 2015 Reel 36642, frame 395 | Zoran Corporation | CSR Technology 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
Aug 2033
Term ends Aug 25, 2033.
Note
The 817 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
17
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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.