US2705747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature control instruments
Assignee: ELSA L STRANGE
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Filing: 1954-01-28
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Granted: 1955-04-05
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Expires: 1974-01-28
Abstract
No abstract record available.
Inventors
- 👤 Charles H Strange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:32
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02; G01K7/04; G01K5/00; G01K5/48; G01K5/50; G01K5/52; H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/46; H01H37/48
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
IN A TEMPERATURE RESPONSIVE INSTRUMENT, A METALLIC TUBE SUBSTANTIALLY CLOSED AT THE INNER END AND HAVING A PORCELAIN TUBE THEREIN COAXIALLY THEREWITH AND ABUTTING AGAINST SAID TUBE END, A ROD-LIKE TRANSMISSION MEMBER OF DIFFERENT METAL FROM THAT OF THE TUBE AND INSULATED THEREFROM AND IN THE METALLIC TUBE AND HAVING A PART AGAINST AN END OF THE PORCELAIN TUBE, THE MEMBER PROJECTING FROM THE OUTER END OF THE METAL TUBE, THE MEMBER BEING FOR TRANSMITTING RELATIVE MOVEMENT OF LONGITUDINAL EXPANSION OF THE TUBES, A SWITCH SUBSTANTIALLY FIXED WITH RESPECT TO THE OUTER END OF THE METAL TUBE AND HAVING A PART ADAPTED TO BE ENGAGED BY THE OUTER END OF THE MEMBER, THE METALS OF THE MEMBER AND TUBE HAVING A MELTING POINT AS HIGH AS ABOUT 2400*F., COEFFICIENT OF THERMAL EXPANSION OF THE SAME,
References Cited (Backward Citations)
US2210526A
Cited
US2393841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |