Relation path viability prediction
US 6,502,094 Surrendered on reissueSurrendered on reissue Oct 13, 2015 · From the USPTO record
20-year base term ended Jun 28, 2020
Surrendered on reissue Oct 13, 2015 · its term and maintenance fees continue in US RE45,752.
Jun 28, 2000
Oct 13, 2015
Dec 31, 2002
Apr 10, 2021
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jun 28, 2000, when this application, 09/606,872, was filed | Jun 28, 2020 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +286 days, USPTO patent term adjustment record | Apr 10, 2021 | 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 | 3 of 3 maintenance fees paid | no change | High confidence |
| Reissue | US RE45,752 issued Oct 13, 2015, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered Oct 13, 2015 | High confidence |
| Surrendered on reissue | The steps above, in order | Oct 13, 2015 | 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.