Configurable LED driver/dimmer for solid state lighting applications
US 10,187,946 Surrendered on reissueSurrendered on reissue Mar 12, 2024 · From the USPTO record
20-year base term ends Sep 17, 2029
Surrendered on reissue Mar 12, 2024 · its term and maintenance fees continue in US RE49,872 and US RE50,882.
Sep 17, 2009
Mar 12, 2024
Jan 22, 2019
Sep 17, 2029
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Sep 17, 2009, when the earliest non-provisional application in its chain was filed (this one was filed Aug 28, 2017); a parent in its chain could not be resolved (the next row) | Sep 17, 2029 | 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 | No term adjustment record on a grant after 2005, so none is added | no change | Medium 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 2 maintenance fees paid | no change | High confidence |
| Reissue | US RE49,872 and US RE50,882 issued Mar 12, 2024, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered Mar 12, 2024 | High confidence |
| Surrendered on reissue | The steps above, in order | Mar 12, 2024 | From the USPTO record |
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.