Chemical Amplification Based on Fluid Partitioning
US 7,041,481 Surrendered on reissueSurrendered on reissue Sep 28, 2010 · Low confidence
20-year base term ended Mar 14, 2023
Surrendered on reissue Sep 28, 2010 · its term and maintenance fees continue in US RE41,780 and US RE43,365 and US RE45,539 and US RE46,322 and US RE47,080 and US RE48,704 and US RE48,788.
Mar 14, 2003
Sep 28, 2010
May 9, 2006
Aug 17, 2024
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Mar 14, 2003, when this application, 10/389,130, was filed | Mar 14, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +522 days, USPTO patent term adjustment record | Aug 17, 2024 | 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 RE41,780 and US RE43,365 and US RE45,539 and US RE46,322 and US RE47,080 and US RE48,704 and US RE48,788 issued Sep 28, 2010, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered Sep 28, 2010 | High confidence |
| Surrendered on reissue | The steps above, in order | Sep 28, 2010 | 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.