US3275764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric limit switch having a diagonally divided housing, a detachable actuator, and mechanisms for causing selected operation of a push button snap switch
Assignee: Schneider Electric USA Inc
•
Filing: 1964-06-05
•
Granted: 1966-09-27
•
Expires: 1984-06-05
Abstract
No abstract record available.
Inventors
- 👤 Rudolf H Kiessling
- 👤 Carl A Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:13
CPC Classifications
H; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/22; H01H21/24; H01H21/28; H01H21/285; H01H2021/287; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/1896
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
AN ELECTRIC LIMIT SWITCH COMPRISING; A HOLLOW HOUSING PROVIDING AN INTERNAL CAVITY, A SEPARATELY ENCLOSED SNAP SWITCH MOUNTED WITHIN THE CAVITY HAVING AN OPERATOR EXTENDING TOWARD AND END OF THE HOUSING, A SLIDER HAVING A PORTION MOVABLE WITHIN THE CAVITY AND ARRANGED WHEN MOVED TO ACTUATE THE SWITCH OPERATOR, A PAIR OF PLUNGERS CARRIED BY THE END AND EACH INDEPENDENTLY MOVABLE OF THE SLIDER AND ARRANGED WHEN MOVED TO MOVE THE SLIDER, AND MEANS INCLUDING A MOVABLE EXTERNAL OPERATOR, SAID MEANS BEING SECURABLE IN ANY ONE OF A PLURALITY OF ANGULAR POSI-
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |