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US 7,069,250 Surrendered on reissueSurrendered on reissue Oct 15, 2013 · Low confidence
20-year base term ended Oct 15, 2021
Surrendered on reissue Oct 15, 2013 · its term and maintenance fees continue in US RE44,542.
Oct 15, 2001
Oct 15, 2013
Jun 27, 2006
May 30, 2023
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Oct 15, 2001, when this application, 09/976,056, was filed | Oct 15, 2021 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +592 days, USPTO patent term adjustment record | May 30, 2023 | 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 | No fee event states this; the fee state is read from the payments the fee record holds; the fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | no change | Low confidence |
| Reissue | US RE44,542 issued Oct 15, 2013, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered Oct 15, 2013 | High confidence |
| Surrendered on reissue | The steps above, in order | Oct 15, 2013 | 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.