Patent Explorer
Browse, filter, and analyze 7 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3454930A | Digital magnetic tape recording system | Potter Instrument Co Inc | Expired / Lapsed | 1966-04-27 | 1969-07-08 | 1986-04-27 | 0.0 yrs | 0 | |
| US3264623A | High density dual track redundant recording system | Potter Instrument Co Inc | Expired / Lapsed | 1965-04-29 | 1966-08-02 | 1985-04-29 | 0.0 yrs | 2 | |
| US3226685A | Digital recording systems utilizing ternary, n bit binary and other self-clocking forms | Potter Instrument Co Inc | Expired / Lapsed | 1961-06-02 | 1965-12-28 | 1981-06-02 | 0.0 yrs | 2 | |
| US3209332A | Reflexing buffer | Potter Instrument Co Inc | Expired / Lapsed | 1961-09-07 | 1965-09-28 | 1981-09-07 | 0.0 yrs | 2 | |
| US3153776A | Sequential buffer storage system for digital information | Potter Instrument Co Inc | Expired / Lapsed | 1961-05-26 | 1964-10-20 | 1981-05-26 | 0.0 yrs | 2 | |
| US3142829A | Checking method for digital magnetic tape systems employing double transition high density recording | Potter Instrument Co Inc | Expired / Lapsed | 1960-08-22 | 1964-07-28 | 1980-08-22 | 0.0 yrs | 2 | |
| US2472542A | Electronic totalizing system | Potter Instrument Co Inc | Expired / Lapsed | 1948-01-29 | 1949-06-07 | 1968-01-29 | 0.0 yrs | 0 |