Lapsed Oct 9, 2026 on the fee record · Low confidence
20-year base term ends Jun 11, 2033
Second maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.
Held by Elwha LLC
Filed Jan 15, 2016 as application 14/997,267 · Granted Oct 9, 2018
Base term, 20 years from filing, plus 370 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Oct 9, 2026
2013
2034
Clock starts
Jun 11, 2013
Jun 11, 2013
No longer in force
Oct 9, 2026
Oct 9, 2026
Granted
Oct 9, 2018
Oct 9, 2018
Term would have run to
Feb 17, 2034
Feb 17, 2034
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
370
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 9,229,103, US 9,231,296, US 9,240,628.
1 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 Feb 17, 2034: its 20-year base term plus 370 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. Confidence: Low. 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 11, 2013, when application 13/915,425, the earliest non-provisional in its chain, was filed (this one was filed Jan 15, 2016) | Jun 11, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +370 days, USPTO patent term adjustment record | Jun 16, 2034 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,229,103, US 9,231,296, US 9,240,628) | capped to Feb 17, 2034 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No fee event states this; the fee state is read from the payments the fee record holds; the fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | lapsed Oct 9, 2026 | Low confidence |
| Computed term end | The steps above, in order | Oct 9, 2026 | Low confidence |
This family
| US 9,240,628 | In force Feb 2034 | Feb 2034 |
| US 10,094,921 | this patent Oct 2026 | Oct 2026 |
| US 10,705,203 | In force Sep 2033 | Sep 2033 |
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 |
|---|---|---|---|
| Jan 15, 2016 Reel 37504, frame 663 | Duncan, William David; Hyde, Roderick A.; Kare, Jordin T.; Wood, Lowell L., JR. | Elwha LLC | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 370 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 9,229,103, US 9,231,296, US 9,240,628.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2018 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.