US1650979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic material
Assignee: Westinghouse Electric Corp
•
Filing: 1925-03-12
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Granted: 1927-11-29
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Expires: 1945-03-12
Abstract
No abstract record available.
Inventors
- 👤 Porter H Brace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:23
CPC Classifications
G; G01; G01K; G01K5/00; G01K5/48; G01K5/56; G01K5/62; G01K5/64; G01K5/66; H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/52; H01H2037/526; H01H2037/528; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/125; Y10T428/12507; Y10T428/12535; Y10T428/12583; Y10T428/1259; Y10T428/12611; Y10T428/12771; Y10T428/12778; Y10T428/12861; Y10T428/12951
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) | 1930-11-28 | 1931-05-30 | 1931-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-11-28 | 1935-05-30 | 1935-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-11-28 | 1939-05-30 | 1939-11-29 | $7700.00 | Window Closed / Lapsed |