Patent US3553957A successfully refreshed from Google Patents.
US3553957A
Expired / Lapsed
US
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Electronic timepiece
Assignee: Individual
•
Filing: 1969-02-12
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Granted: 1971-01-12
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Expires: 1989-02-12
Abstract
Abstract AN ELECTRONIC TIMEPIECE COMPRISES A TIME BASE DELIVERING HIGH FREQUENCY ELECTRIC SIGNALS AND ELECTRONIC MEANS FOR DIVIDING THIS HIGH FREQUENCY, AND TIME-REPRESENTING MEMBERS, WHEREIN A DEVICE IS PROVIDED FOR CORRECTING THE TIME GIVEN BY THE TIME-REPRESENTING MEMBERS WHEN THE TIME DOES NOT CORRESPOND TO THAT WHICH IT SHOULD ACTUALLY BE ON THE BASIS OF A COUNT OF THE SIGNALS OF DIVIDED FREQUENCY ISSUING FROM THE DIVIDING MEANS.
Inventors
- 👤 Peter Dome
- 👤 Jakob Luscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:54
CPC Classifications
G; G04; G04C; G04C3/00; G04C17/00; G04C3/14; G04C3/143; G04G; G04G3/00; G04G3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |