Patent US2370039A successfully refreshed from Google Patents.
US2370039A
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Assignee: Westinghouse Electric Corp
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Filing: 1941-12-31
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Granted: 1945-02-20
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Expires: 1961-12-31
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand C Iglehart
- 👤 Bruno L Ullrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:05
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/28; H01H33/00; H01H33/02; H01H33/46; H01H33/52
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) | 1948-02-20 | 1948-08-21 | 1949-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-20 | 1952-08-21 | 1953-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-20 | 1956-08-21 | 1957-02-20 | $7700.00 | Window Closed / Lapsed |