US1693369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-responsive material
Assignee: Westinghouse Electric Corp
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Filing: 1927-04-21
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Granted: 1928-11-27
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Expires: 1947-04-21
Abstract
No abstract record available.
Inventors
- 👤 Paul B Cochran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:59
CPC Classifications
G; G01; G01K; G01K11/00; G01K11/12; Y; Y10; Y10S; Y10S252/00; Y10S252/962; Y10S55/00; Y10S55/34
Claims Analysis
Total Claims: 0
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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) | 1931-11-27 | 1932-05-28 | 1932-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-11-27 | 1936-05-28 | 1936-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-11-27 | 1940-05-28 | 1940-11-27 | $7700.00 | Window Closed / Lapsed |