Term ends May 8, 2027 · High confidence
20-year base term ends Nov 22, 2026
Filed Mar 26, 2012 as application 13/429,962 · Granted Jan 1, 2019
Base term plus 167 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Nov 22, 2006
Nov 22, 2006
Term ends
May 8, 2027
May 8, 2027
Granted
Jan 1, 2019
Jan 1, 2019
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
167
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 8,149,847, to May 8, 2027. The term already ends on or before that date, so the cap shortened nothing.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
4
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 167 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. 2 of 2 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 Nov 22, 2006, when application 11/603,396, the earliest non-provisional in its chain, was filed (this one was filed Mar 26, 2012) | Nov 22, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +167 days, USPTO patent term adjustment record | May 8, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,149,847) | resolves to May 8, 2027, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 8, 2027 | High confidence |
This family
| US 8,149,847 | In force Jan 2028 | Jan 2028 |
| US 10,171,293 | this patent May 2027 | May 2027 |
| US 11,196,622 | In force Nov 2026 | Nov 2026 |
| US 12,047,230 | In force Nov 2026 | Nov 2026 |
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 |
|---|---|---|---|
| Oct 9, 2017 Reel 43812, frame 586 | Siripunkaw, Pak; Brzozowski, John Jason; Avirneni, Srinivas; Weber, Emery J. | Comcast Cable Holdings, LLC | Assignment of Assignor's Interest |
| Oct 9, 2017 Reel 43812, frame 643 | Comcast Cable Holdings, LLC; Comcast Cable Communications, LLC | Comcast Cable Communications, LLC | Merger and Change of Name |
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
May 2027
Term ends May 8, 2027. No further fees fall due before then
Note
The 167 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 8,149,847, ends no earlier than this term, so it caps nothing.
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2019 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.