Functional Biopolymer Modification Reagents and Uses Thereof
US 7,732,628 Surrendered on reissueSurrendered on reissue Oct 4, 2016 · Low confidence
20-year base term ended Aug 1, 2020
Surrendered on reissue Oct 4, 2016 · its term and maintenance fees continue in US RE46,171.
Aug 1, 2000
Oct 4, 2016
Jun 8, 2010
Oct 2, 2024
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Aug 1, 2000, when the earliest non-provisional application in its chain was filed (this one was filed Sep 8, 2004); a parent in its chain could not be resolved (the next row) | Aug 1, 2020 | 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 | +1523 days, USPTO patent term adjustment record | Oct 2, 2024 | 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 | 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 RE46,171 issued Oct 4, 2016, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered Oct 4, 2016 | High confidence |
| Surrendered on reissue | The steps above, in order | Oct 4, 2016 | 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. Related patents and pending applications may cover overlapping subject matter.