Systems and method for secure wireless payment transactions
US 7,657,489 Surrendered on reissueSurrendered on reissue Dec 24, 2013 · From the USPTO record
20-year base term ends Jan 18, 2027
Surrendered on reissue Dec 24, 2013 · its term and maintenance fees continue in US RE44,669.
Jan 18, 2007
Dec 24, 2013
Feb 2, 2010
Aug 26, 2027
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jan 18, 2007, when this application, 11/624,620, was filed | Jan 18, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +220 days, USPTO patent term adjustment record | Aug 26, 2027 | 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 | 1 of 3 maintenance fees paid | no change | High confidence |
| Reissue | US RE44,669 issued Dec 24, 2013, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered Dec 24, 2013 | High confidence |
| Surrendered on reissue | The steps above, in order | Dec 24, 2013 | 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.