US3171925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap-acting thermo-responsive member that minimizes creep action
Assignee: AMSTAR TECHNICAL PRODUCTS COMPANY Inc A CORP OF DE
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Filing: 1961-05-01
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Granted: 1965-03-02
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Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 Homer F Malone
- 👤 Robert W Filchak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:45
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/52; H01H37/54; H01H37/5418; F; F16; F16H; F16H35/00; F16H35/14; F23; F23D; F23D11/00; F23D11/24; H01H2037/5445
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN ELONGATED GENERALLY RECTANGULAR SNAP-ACTING THERMO-RESPONSIVE BIMETALLIC MEMBER HAVING A FREE END PORTION AND A FIXED END PORTION WITH A NON-DEVELOPABLE SURFACE EXTENDING THEREBETWEEN AND SUBSTANTIALLY ENTIRELY THEREACROSS, AND A SUPPORTING MEMBER SPACED FROM THE NON-DEVELOPABLE SURFACE OF SAID BIMETALLIC MEMBER AND OVERLAYING SUBSTANTIALLY ALL OF THE AREA OF THE BIMETAL BETWEEN SAID NON-DEVELOPABLE SURFACE AND THE FIXED END THEREOF TO MINIMIZE PRE-SNAP CREEP OF SAID THERMO-RESPONSIVE MEMBER.
Claim 2
Dependent Claim
68 words
AN ELONGATED GENERALLY RECTANGULAR SNAP-ACTING THERMO-RESPONSIVE BIMETALLIC MEMBER HAVING A FREE END PORTION AND A FIXED END PORTION WITH A NON-DEVELOPABLE SURFACE EXTENDING THEREBETWEEN AND SUBSTANTIALLY ENTIRELY THEREACROSS, AND A SUPPORTING MEMBER SPACED FROM THE NON-DEVELOPABLE SURFACE OF SAID BIMETALLIC MEMBER AND OVERLAYING SUBSTANTIALLY ALL OF THE AREA OF THE BIMETAL BETWEEN SAID NON-DEVELOPABLE SURFACE AND THE FIXED END THEREOF TO MINIMIZE PRE-SNAP CREEP OF SAID THERMO-RESPONSIVE MEMBER.
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |