Protocol for Transmitting a Plurality of Multiple Exchange Logic Flow of Command/Response Pairs on a Single Physical Exchange Channel Between Master and Slave and Corresponding System for Controlling and Monitoring Execution of Applets
US 6,901,459 Lapsed on the fee recordLapsed May 31, 2017 on the fee record · From the USPTO record
20-year base term ended Oct 17, 2021
Third maintenance fee unpaid; grace period ended.
Oct 17, 2001
May 31, 2017
May 31, 2005
Nov 10, 2021
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Oct 17, 2001, when this application, 10/399,729, was filed | Oct 17, 2021 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +24 days, USPTO patent term adjustment record | Nov 10, 2021 | 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 | 2 of 3 maintenance fees paid | lapsed May 31, 2017 | High confidence |
| Computed term end | The steps above, in order | May 31, 2017 | 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.