US3336119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Element for sensing and controlling humidity and temperature changes
Assignee: W M CHACE CO
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Filing: 1964-11-04
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Granted: 1967-08-15
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Expires: 1984-11-04
Abstract
No abstract record available.
Inventors
- 👤 Clarence F Alban
- 👤 Charles C Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:07
CPC Classifications
G; G01; G01K; G01K5/00; G01K5/48; G01K5/56; G01K5/62; G01K5/64; G01K5/66; G01N; G01N19/00; G01N19/10; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/125; Y10T428/12507; Y10T428/12535; Y10T428/12556; Y10T428/12569; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12958; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A LAMINATED ELEMENT FOR SENSING CHANGES IN AMBIENT HUMIDITY AND TEMPERATURE CONDITIONS COMPRISING A THERMALLY RESPONSIVE MULTILAYER METAL UNIT HAVING AT LEAST TWO LAYERS OF METAL HAVING DIFFERENT COEFFICIENTS OF THERMAL EXPANSION AND A SIDE SUFACE, AND A SELF-SUSTAINING LAYER OF AN ELASTIC HYGROSCOPIC MATERIAL WHICH CHANGES DIMENSIONS IN RESPONSE TO CHANGES IN HUMIDITY CONDITIONS, SAID LAYER HAVING A SIDE SURFACE ARRANGED IN SURFACE-TOSURFACE CONTACT WITH AND SECURED OVER SUBSTANTIALLY ITS ENTIRE AREA TO SAID SURFACE OF SAID METAL UNIT SO THAT SAID LAMINATED ELEMENTED ACTS AS AN INTEGRAL WHOLE.
Claim 2
Dependent Claim
90 words
A LAMINATED ELEMENT FOR SENSING CHANGES IN AMBIENT HUMIDITY AND TEMPERATURE CONDITIONS COMPRISING A THERMALLY RESPONSIVE MULTILAYER METAL UNIT HAVING AT LEAST TWO LAYERS OF METAL HAVING DIFFERENT COEFFICIENTS OF THERMAL EXPANSION AND A SIDE SUFACE, AND A SELF-SUSTAINING LAYER OF AN ELASTIC HYGROSCOPIC MATERIAL WHICH CHANGES DIMENSIONS IN RESPONSE TO CHANGES IN HUMIDITY CONDITIONS, SAID LAYER HAVING A SIDE SURFACE ARRANGED IN SURFACE-TOSURFACE CONTACT WITH AND SECURED OVER SUBSTANTIALLY ITS ENTIRE AREA TO SAID SURFACE OF SAID METAL UNIT SO THAT SAID LAMINATED ELEMENTED ACTS AS AN INTEGRAL WHOLE.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |