Term ends Nov 12, 2027 · Medium confidence
20-year base term ends Nov 12, 2027
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 8,156,101), so the cap could be lower.
Filed Apr 9, 2012 as application 13/442,442 · Granted Nov 4, 2014
Base term plus 45 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2007
2027
Clock starts
Nov 12, 2007
Nov 12, 2007
Term ends
Nov 12, 2027
Nov 12, 2027
Granted
Nov 4, 2014
Nov 4, 2014
base term
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
45
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 7,660,793, US 8,156,101.
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.
6
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 45 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. All three maintenance fees are recorded paid; no more fees are due. 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 Nov 12, 2007, when application 11/938,709, the earliest non-provisional in its chain, was filed (this one was filed Apr 9, 2012) | Nov 12, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +45 days, USPTO patent term adjustment record | Dec 27, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,660,793, US 8,156,101) | capped to Nov 12, 2027 | Medium 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 | Nov 12, 2027 | Medium confidence |
This family
| US 7,660,793 | In force Nov 2027 | Nov 2027 |
| US 8,156,101 | In force no later than Jun 2028 | no later than Jun 2028 |
| US 8,880,501 | this patent Nov 2027 | Nov 2027 |
| US 9,396,222 | In force Nov 2027 | Nov 2027 |
| US 10,191,974 | In force Nov 2027 | Nov 2027 |
| US 11,449,538 | In force Nov 2027 | Nov 2027 |
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 |
|---|---|---|---|
| Apr 9, 2012 Reel 28014, frame 286 | Indeck, Ronald S.; Indeck, David Mark | Exegy Incorporated | Assignment of Assignor's Interest |
| Jul 1, 2013 Reel 30724, frame 144 | Exegy Incorporated | IP Reservoir, LLC | Assignment of Assignor's Interest |
| Sep 26, 2025 Reel 72384, frame 436 | IP Reservoir, LLC | Charter Communications Operating, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Nov 2027
Term ends Nov 12, 2027. No further fees fall due before then
Note
The 45 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 7,660,793, US 8,156,101.
Citations
108
later US patents cite this one
That is top 5% of utility patents granted in 2014 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.