Carrier Tracking Circuit and Method Including Dual Numerically Controlled Oscillators and Feedforward Phase Correction Coefficient
US 7,324,612 Surrendered on reissueSurrendered on reissue Jan 24, 2012 · Low confidence
20-year base term ended Feb 23, 2024
Surrendered on reissue Jan 24, 2012 · its term and maintenance fees continue in US RE43,131.
Feb 23, 2004
Jan 24, 2012
Jan 29, 2008
Feb 24, 2026
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Feb 23, 2004, when this application, 10/785,622, was filed | Feb 23, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +732 days, USPTO patent term adjustment record | Feb 24, 2026 | 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 RE43,131 issued Jan 24, 2012, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered Jan 24, 2012 | High confidence |
| Surrendered on reissue | The steps above, in order | Jan 24, 2012 | 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
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