Also listed on Wildseed Ltd, an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Sep 20, 2021 (Lit-US Chisum 21-A, LLC).
Term ends Dec 26, 2031 · High confidence
20-year base term ends Jun 23, 2028
Held by Wildseed Mobile LLC
Filed Jun 23, 2008 as application 12/144,532 · Granted Sep 22, 2015
Base term plus 1281 days of patent term adjustment (USPTO delay)
Today
2008
2031
Clock starts
Jun 23, 2008
Jun 23, 2008
Term ends
Dec 26, 2031
Dec 26, 2031
Granted
Sep 22, 2015
Sep 22, 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
1,281
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.
2
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 1281 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 Jun 23, 2008, when this application, 12/144,532, was filed | Jun 23, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1281 days, USPTO patent term adjustment record | Dec 26, 2031 | 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 | Dec 26, 2031 | High confidence |
This family
| US 9,141,960 | this patent Dec 2031 | Dec 2031 |
| US 10,251,021 | In force Nov 2028 | Nov 2028 |
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 |
|---|---|---|---|
| Jun 23, 2008 Reel 21137, frame 738 | Feldman, Evan; Nelson, Jonathan | Varia Mobil LLC | Assignment of Assignor's Interest |
| Jul 31, 2008 Reel 21316, frame 437 | Varia Mobil LLC | Varia Holdings LLC | Change of Name |
| Jul 31, 2008 Reel 21316, frame 442 | Varia Holdings LLC | Varia LLC | Assignment of Assignor's Interest |
| Feb 15, 2010 Reel 23928, frame 756 | Varia LLC | Varia Holdings LLC | Assignment of Assignor's Interest |
| Aug 19, 2021 Reel 57228, frame 772 | Varia Holdings LLC | Wildseed Mobile LLC | Assignment of Assignor's Interest |
| Sep 20, 2021 Reel 57535, frame 783 | Wildseed Mobile LLC | Lit-US Chisum 21-A, LLC | 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
Dec 2031
Term ends Dec 26, 2031. Maintenance fees still fall due before then
Note
The 1281 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
19
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.