US3295081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermo-magnetically operated switches
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1964-07-21
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Granted: 1966-12-27
•
Expires: 1984-07-21
Abstract
No abstract record available.
Inventors
- 👤 Kern M Bowyer
- 👤 Campbell Richard Lyons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:59
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/58; H01H37/585
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN COMBINATION: AN ELONGATED HOLLOW TEMPERATURE SENSING PROBE; FERROMAGNETIC SWITCH MEANS DISPOSED IN SAID PROBE; A MAGNET DISPOSED IN SAID PROBE ADJACENT SAID SWITCH MEANS; AND A MASS OF MAGNETIC EXCHANGE INVERSION POWDER DISPOSED IN THE PROBE FOR REDIRECTING THE NORMAL FIELD OF THE MAGNET TO OPERATE THE SWITCH MEANS FROM ITS NORMAL POSITION.
Claim 2
Dependent Claim
54 words
IN COMBINATION: AN ELONGATED HOLLOW TEMPERATURE SENSING PROBE; FERROMAGNETIC SWITCH MEANS DISPOSED IN SAID PROBE; A MAGNET DISPOSED IN SAID PROBE ADJACENT SAID SWITCH MEANS; AND A MASS OF MAGNETIC EXCHANGE INVERSION POWDER DISPOSED IN THE PROBE FOR REDIRECTING THE NORMAL FIELD OF THE MAGNET TO OPERATE THE SWITCH MEANS FROM ITS NORMAL POSITION.
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |