Also listed on Corning Cable Systems LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 17, 2029 · Medium confidence
20-year base term ends Nov 14, 2028
Why Medium: A parent in the chain could not be resolved.
Filed Dec 8, 2014 as application 14/563,346 · Granted Dec 19, 2017
Base term plus 398 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Nov 14, 2008
Nov 14, 2008
Term ends
Dec 17, 2029
Dec 17, 2029
Granted
Dec 19, 2017
Dec 19, 2017
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
398
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 8,161,721, US 8,161,722, US 8,904,743, US 9,845,573, to Dec 17, 2029. 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.
8
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 398 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: 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 14, 2008, when application 12/271,104, the earliest non-provisional in its chain, was filed (this one was filed Dec 8, 2014); a parent in its chain could not be resolved (the next row) | Nov 14, 2028 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +398 days, USPTO patent term adjustment record | Dec 17, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,161,721, US 8,161,722, US 8,904,743, US 9,845,573) | resolves to Dec 17, 2029, 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 | Dec 17, 2029 | Medium confidence |
This family
| US 8,161,721 | In force Sep 2030 | Sep 2030 |
| US 8,161,722 | In force Sep 2030 | Sep 2030 |
| US 8,904,743 | In force Aug 2030 | Aug 2030 |
| US 9,845,573 | this patent Dec 2029 | Dec 2029 |
| US 10,683,610 | In force no later than May 2029 | no later than May 2029 |
| US 11,268,238 | In force Nov 2028 | Nov 2028 |
| US 11,718,956 | In force Nov 2028 | Nov 2028 |
7 of 8 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Mar 1, 2016 Reel 37859, frame 340 | Corning Cable Systems LLC | Corning Optical Communications LLC | Change of Name |
| Jul 11, 2017 Reel 42962, frame 780 | Chiasson, David Wesley; Conrad, Craig Miller; Moon, Jonathan Edward; Petersen, Mark Wade; Smith, David Henry | Corning Cable Systems 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
Dec 2029
Term ends Dec 17, 2029. No further fees fall due before then
Note
The 398 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 8,161,721, US 8,161,722, US 8,904,743, US 9,845,573, ends no earlier than this term, so it caps nothing.
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2017 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.