Optical Coupling
US 12,704,688 Term endedTerm ended Mar 29, 2022 · Low confidence
20-year base term ends Oct 8, 2035
Reissue of US 10,564,374, which was surrendered when this reissue was granted; its term and maintenance fees continue here.
Oct 8, 2015
Mar 29, 2022
Aug 11, 2026
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Oct 8, 2015, when the earliest non-provisional application in its chain was filed (this one was filed Sep 19, 2024) | Oct 8, 2035 | High confidence |
| Continuity chain | A reissue: its term follows the original patent's, with the original's term adjustment | follows the original patent | Medium confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,852,876, US 12,189,195, US 12,321,021, US 12,546,958, US 12,560,770, US 9,804,334) | capped to Mar 29, 2022 | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Mar 29, 2022 | Low confidence |
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.
Not on this page: the patent's family, its recorded assignments and its citation count. USPTO's assignment records, linked above, list every recorded assignment.
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.