Work Support System, Work Support Server, Work Situation Determination Apparatus, Device for Worker, and Work Object Equipment
US 11,062,264 Lapsed on the fee recordLapsed Jul 13, 2025 on the fee record · Medium confidence
20-year base term ends Mar 8, 2039
Why Medium: A terminal disclaimer is on file (approved) with no resolved reference, so the term may end earlier.
First maintenance fee unpaid; grace period ended.
Mar 8, 2019
Jul 13, 2025
Jul 13, 2021
Dec 7, 2039
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Mar 8, 2019, when the earliest non-provisional application in its chain was filed (this one was filed May 14, 2019) | Mar 8, 2039 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +274 days, USPTO patent term adjustment record | Dec 7, 2039 | High 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 3 maintenance fees paid | lapsed Jul 13, 2025 | High confidence |
| Computed term end | The steps above, in order | Jul 13, 2025 | Medium 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.