Term ends Mar 3, 2031 · High confidence
20-year base term ends Jan 4, 2031
Held by ELC Management LLC
Filed Oct 19, 2012 as application 13/656,258 · Granted Mar 31, 2015
Base term plus 58 days of patent term adjustment (USPTO delay)
Today
2011
2031
Clock starts
Jan 4, 2011
Jan 4, 2011
Term ends
Mar 3, 2031
Mar 3, 2031
Granted
Mar 31, 2015
Mar 31, 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
58
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,722,026, to Mar 3, 2031. The term already ends on or before that date, so the cap shortened nothing.
3 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 58 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees are recorded paid; no more fees are due. 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 Jan 4, 2011, when application 12/984,159, the earliest non-provisional in its chain, was filed (this one was filed Oct 19, 2012) | Jan 4, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +58 days, USPTO patent term adjustment record | Mar 3, 2031 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,722,026) | resolves to Mar 3, 2031, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 3, 2031 | High confidence |
This family
| US 8,722,026 | In force Apr 2031 | Apr 2031 |
| US 8,992,897 | this patent Mar 2031 | Mar 2031 |
The applications whose file history this site holds. The family may have others.
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
Mar 2031
Term ends Mar 3, 2031. No further fees fall due before then
Note
The 58 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,722,026, ends no earlier than this term, so it caps nothing.
Citations
9
later US patents cite this one
That is above the median 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.