Term ends Nov 26, 2028 · Medium confidence
20-year base term ends Nov 14, 2028
Why Medium: A parent in the chain could not be resolved.
Filed May 15, 2020 as application 16/875,061 · Granted Mar 8, 2022
Base term plus 12 days of patent term adjustment (USPTO delay)
Today
2008
2028
Clock starts
Nov 14, 2008
Nov 14, 2008
Term ends
Nov 26, 2028
Nov 26, 2028
Granted
Mar 8, 2022
Mar 8, 2022
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
12
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it 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 12 days past its 20-year base term on prosecution delay. 1 of 1 maintenance fees is 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 May 15, 2020); 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 | +12 days, USPTO patent term adjustment record | Nov 26, 2028 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 26, 2028 | 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 | In force Dec 2029 | Dec 2029 |
| US 10,683,610 | In force no later than May 2029 | no later than May 2029 |
| US 11,268,238 | this patent 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 |
|---|---|---|---|
| May 15, 2020 Reel 52672, frame 643 | Chiasson, David W.; Conrad, Craig Miller; Moon, Jonathan Edward; Petersen, Mark Wade; Smith, David Henry | Corning Cable Systems LLC | Assignment of Assignor's Interest |
| May 15, 2020 Reel 52672, frame 705 | Corning Cable Systems LLC | Corning Optical Communications LLC | 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
Nov 2028
Term ends Nov 26, 2028. No further fees fall due before then
Note
The 12 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2022 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.