US3075552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of and means for providing safe operation of devices
Assignee: International Basic Economy Corp
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Filing: 1956-09-17
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Granted: 1963-01-29
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Expires: 1976-09-17
Abstract
No abstract record available.
Inventors
- 👤 Nathan C Hunt
- 👤 Albert W Hainlin
- 👤 Doyle E Lockwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:10
CPC Classifications
F; F16; F16P; F16P7/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737; Y10T137/8158; Y10T137/8593; Y10T137/86493; Y10T137/86574
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
THE COMBINATION COMPRISING A PAIR OF SOLENOID ACTUATED FLUID VALVES CONTROLLING FLOW OF FLUID TO EFFECT OPERATION OF APPARATUS UPON ENERGIZATION OF BOTH SOLENOIDS, A PAIR OF ELECTRICALLY CONDUCTIVE MEMBERS WHOSE RESISTANCE TO CURRENT FLOW THERETHROUGH CHANGES AT THE SAME RATE IN ACCORDANCE WITH TEMPERATURE CHANGES THEREOF AND EACH DISPOSED FOR TEMPERATURE MODULATION BY THE FLUID CONTROLLED BY RESPECTIVE VALVES, AN ELECTRICAL CIRCUIT INCLUDING SAID MEMBERS THROUGH WHICH CURRENT FLOWS IN THE SAME MANNER DESPITE A CHANGE IN TEMPERATURE OF THE SAME MAGNITUDE AND IN THE SAME DIRECTION OF BOTH MEMBERS, AND MEANS RESPONSIVE TO A CHANGE IN CURRENT FLOW THROUGH SAID CIRCUIT CAUSED BY A CHANGE IN THE RELATIVE TEMPERATURE OF
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |