US3040580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature sensitive device
Assignee: General Electric Co
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Filing: 1960-11-02
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Granted: 1962-06-26
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Expires: 1980-11-02
Abstract
No abstract record available.
Inventors
- 👤 Edward R Stover
- 👤 Richard M Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:40
CPC Classifications
G; G01; G01K; G01K5/00; G01K5/48; G01K5/56; G01K5/62; G01K5/64; G01K5/68
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
IN A TEMPERATURE SENSITIVE DEVICE INCLUDING SUPPORTING MEANS, AND TEMPERATURE INDICATING MEANS, THE COMBINATION THEREWITH OF A TEMPERATURE SENSITIVE ELEMENT AFFIXED TO SAID SUPPORTING MEANS AND ADAPTED TO ACTUATE SAID TEMPERATURE INDICATING MEANS, SAID ELEMENT COMPRISING A FIRST LAYER OF PYROLYTIC GRAPHITE, A SECOND LAYER OF PYROLYTIC GRAPHITE BONDED TO SAID FIRST LAYER, AND EACH OF SAID LAYERS HAVING A DIFFERENT THERMAL EXPANSION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |