Lapsed Nov 6, 2024 on the fee record · High confidence
20-year base term ended Oct 28, 2024
Third maintenance fee unpaid; grace period ended.
Held by Callahan Cellular L.L.C.
Filed May 26, 2010 as application 12/787,957 · Granted Nov 6, 2012
Base term, 20 years from filing, plus 83 days of patent term adjustment (USPTO delay)
Today
Lapsed Nov 6, 2024
2004
2026
Clock starts
Oct 28, 2004
Oct 28, 2004
No longer in force
Nov 6, 2024
Nov 6, 2024
Granted
Nov 6, 2012
Nov 6, 2012
Term would have run to
Jan 19, 2025
Jan 19, 2025
base term
patent term adjustment
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
83
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.
3
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 Jan 19, 2025: its 20-year base term plus 83 days of term 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 Oct 28, 2004, when application 10/975,623, the earliest non-provisional in its chain, was filed (this one was filed May 26, 2010) | Oct 28, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +83 days, USPTO patent term adjustment record | Jan 19, 2025 | 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 | lapsed Nov 6, 2024 | High confidence |
| Computed term end | The steps above, in order | Nov 6, 2024 | High confidence |
This family
| US 7,774,789 | In force Feb 2029 | Feb 2029 |
| US 8,307,380 | this patent Nov 2024 | Nov 2024 |
| US 8,789,073 | Term ended Oct 2024 | Oct 2024 |
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 |
|---|---|---|---|
| Jul 8, 2011 Reel 26560, frame 790 | Recursion Software, Inc. | Curen Software Enterprises, L.l.c. | Assignment of Assignor's Interest |
| Sep 24, 2015 Reel 36674, frame 786 | Curen Software Enterprises, L.l.c. | Callahan Cellular L.L.C. | 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 83 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
18
later US patents cite this one
That is above the median of utility patents granted in 2012 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.