Patent US3683917A successfully refreshed from Google Patents.
US3310641A
Expired / Lapsed
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Rotary switch with improved contact element structure
Assignee: Hamilton Watch Co
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Filing: 1964-11-02
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Granted: 1967-03-21
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Expires: 1984-11-02
Abstract
No abstract record available.
Inventors
- 👤 Ralph G Eshleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:49
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/54; H01H19/56; H01H19/58; H01H19/585
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
69 words
A SWITCH COMPRISING A PAIR OF FLAT ANNULAR DISCS, A ROTOR, SAID DISCS BEING MOUNTED IN SPACED PARALLEL RELATION AND COAXIAL WITH THE ROTATIONAL AXIS OF SAID ROTOR, ONE OF SAID DISCS INCLUDING A CONTINUOUS CONDUCTIVE MEANS ON BOTH SIDES, THE OTHER OF SAID DISCS INCLUDING DISCONTINUOUS CONDUCTIVE MEANS ON BOTH SIDES, AND ELECTRICALLY CONDUCTIVE MEANS CARRIED BY SAID ROTOR RESILIENTLY ENGAGING BOTH SIDES OF EACH OF SAID DISCS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |