US1699752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal relay
Assignee: Westinghouse Electric Corp
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Filing: 1925-03-26
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Granted: 1929-01-22
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Expires: 1945-03-26
Abstract
No abstract record available.
Inventors
- 👤 Karl C Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:03
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/12; H01H37/16
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) | 1932-01-22 | 1932-07-23 | 1933-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-01-22 | 1936-07-23 | 1937-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-01-22 | 1940-07-23 | 1941-01-22 | $7700.00 | Window Closed / Lapsed |