Patent US3312809A successfully refreshed from Google Patents.
US3312809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring operated switch having latching means
Assignee: F and F Enterprises Inc
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Filing: 1965-12-27
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Granted: 1967-04-04
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Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 James E Hill
- 👤 Matthew C Podgorski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:42
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/26; H01H13/28; H01H13/50; H01H13/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A SWITCH CONSTRUCTION COMPRISING A PLURALITY OF STATIONARY CONTACTS FORMED IN AN INSULATING BASE AND INCLUDING A HOLDER FOR SUPPORTING SLIDING CONTACTS, SAID HOLDER BEING MOVABLE OVER SAID BASE FOR DISPOSING SAID SLIDING CONTACTS IN AT LEAST FIRST AND SECOND POSITIONS WITH RESPECT TO SAID STATIONARY CONTACTS, THE IMPROVEMENT COMPRISING LOCKING MEANS RELEASABLY RETAINING SAID HOLDER IN AT LEAST FIRST AND SECOND POSITIONS WITH RESPECT TO SAID STATIONARY CONTACTS, SAID LOCKING MEANS INCLUDING MEANS INCLUDING A LATCH MEMBER CARRYING LATCHING FINGERS, FINGER RECEIVING MEANS ASSOCIATED WITH SAID CONSTRUCTION FOR LOCKING ENGAGEMENT WITH SAID FINGERS, AND AN OVER CENTER SPRING MEANS ATTACHED TO SAID LATCH MEMBER, SAID SPRING MEANS ALTERNATINGLY URGING SAID LATCH MEMBER TO SAID FIRST AND SECOND POSITIONS.
Claim 2
Dependent Claim
120 words
IN A SWITCH CONSTRUCTION COMPRISING A PLURALITY OF STATIONARY CONTACTS FORMED IN AN INSULATING BASE AND INCLUDING A HOLDER FOR SUPPORTING SLIDING CONTACTS, SAID HOLDER BEING MOVABLE OVER SAID BASE FOR DISPOSING SAID SLIDING CONTACTS IN AT LEAST FIRST AND SECOND POSITIONS WITH RESPECT TO SAID STATIONARY CONTACTS, THE IMPROVEMENT COMPRISING LOCKING MEANS RELEASABLY RETAINING SAID HOLDER IN AT LEAST FIRST AND SECOND POSITIONS WITH RESPECT TO SAID STATIONARY CONTACTS, SAID LOCKING MEANS INCLUDING MEANS INCLUDING A LATCH MEMBER CARRYING LATCHING FINGERS, FINGER RECEIVING MEANS ASSOCIATED WITH SAID CONSTRUCTION FOR LOCKING ENGAGEMENT WITH SAID FINGERS, AND AN OVER CENTER SPRING MEANS ATTACHED TO SAID LATCH MEMBER, SAID SPRING MEANS ALTERNATINGLY URGING SAID LATCH MEMBER TO SAID FIRST AND SECOND POSITIONS.
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) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |