Patent US3292124A successfully refreshed from Google Patents.
US3292124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically sensed temperature control device
Assignee: Iowa State University Research Foundation Inc
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Filing: 1964-09-24
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Granted: 1966-12-13
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Expires: 1984-09-24
Abstract
No abstract record available.
Inventors
- 👤 Legvold Sam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:32
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/58
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
A THERMOSTAT, COMPRISING A FRAME, A PAIR OF CONTACT ARMS ON SAID FRAME, MEANS COUPLED TO SAID ARMS WHEN THE SAME ARE IN CONTACT FOR CONTROLLING THE TEMPERATURE OF THE SPACE SURROUNDING SAID ARMS, ONE OF SAID ARMS BEING EQUIPPED WITH A FERROMAGNETIC ELEMENT AND THE OTHER ARM BEING EQUIPPED WITH A GADOLINIUM-CONTAINING ELEMENT ALIGNED WITH THE FIRST-MENTIONED ELEMNT FOR SELECTIVE CONTACT THEREWITH, SAID GADOLINIUM-CONTAINING ELEMENTS ALSO CONTAINING CARBON WHEREBY THE CURIE POINT OF SAID GADOLINIUM-CONTAINING ELEMENT IS ELEVATED ABOVE 72*F.
References Cited (Backward Citations)
US3009047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |