Power supply system providing power and analog data signal for use by portable electronic device to control battery charging
US 9,806,548 Lapsed on the fee recordLapsed Oct 31, 2021 on the fee record · From the USPTO record
20-year base term ended Jan 15, 2024
First maintenance fee unpaid; grace period ended.
Jan 15, 2004
Oct 31, 2021
Oct 31, 2017
Jan 15, 2024
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jan 15, 2004, when the earliest non-provisional application in its chain was filed (this one was filed Aug 5, 2016) | Jan 15, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | No term adjustment record on a grant after 2005, so none is added | no change | Medium confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 1 maintenance fees paid | lapsed Oct 31, 2021 | High confidence |
| Computed term end | The steps above, in order | Oct 31, 2021 | 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.