Term ends Jul 25, 2032 · Medium confidence
20-year base term ends Sep 26, 2031
Why Medium: A parent in the chain could not be resolved.
Held by Alcatel Lucent
Filed Aug 31, 2012 as application 13/601,236 · Granted Jan 13, 2015
Base term plus 303 days of patent term adjustment (USPTO delay)
Today
2011
2032
Clock starts
Sep 26, 2011
Sep 26, 2011
Term ends
Jul 25, 2032
Jul 25, 2032
Granted
Jan 13, 2015
Jan 13, 2015
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
303
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.
7
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 303 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: Medium. 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 Sep 26, 2011, when application 13/245,160, the earliest non-provisional in its chain, was filed (this one was filed Aug 31, 2012); a parent in its chain could not be resolved (the next row) | Sep 26, 2031 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +303 days, USPTO patent term adjustment record | Jul 25, 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 | Jul 25, 2032 | Medium confidence |
This family
| US 8,824,501 | In force Apr 2032 | Apr 2032 |
| Application 13/411,462 | Abandoned not computed | not computed |
| US 8,934,786 | this patent Jul 2032 | Jul 2032 |
| Application PCT/US2012/054755 | PCT application no patent term | no patent term |
| Application PCT/US2012/054813 | PCT application no patent term | no patent term |
| Application PCT/US2012/055012 | PCT application no patent term | no patent term |
| US 9,300,400 | In force Oct 2031 | Oct 2031 |
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 |
|---|---|---|---|
| Oct 18, 2012 Reel 29152, frame 425 | Liu, Xiang; Winzer, Peter J; Chraplyvy, Andrew Roman; Tkach, Robert William | Alcatel-Lucent USA Inc. | Assignment of Assignor's Interest |
| Mar 7, 2013 Reel 30510, frame 627 | Alcatel-Lucent USA Inc. | Credit Suisse AG | Security Interest |
| Sep 18, 2013 Reel 31230, frame 951 | Alcatel-Lucent USA Inc. | Alcatel Lucent | Assignment of Assignor's Interest |
| Oct 9, 2014 Reel 33949, frame 16 | Credit Suisse AG | Alcatel-Lucent USA Inc. | Release of Security 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
Jul 2032
Term ends Jul 25, 2032.
Note
The 303 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
25
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.