Patent US2438020A successfully refreshed from Google Patents.
US2438020A
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US
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Gear housing
Assignee: Westinghouse Electric Corp
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Filing: 1944-10-25
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Granted: 1948-03-16
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Expires: 1964-10-25
Abstract
No abstract record available.
Inventors
- 👤 Rawdon E Rambo
- 👤 John E Pastoret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:01
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/029; B; B61; B61C; B61C17/00; B61C17/08; F16H1/00; F16H1/02; F16H1/04; F16H1/06; F16H2057/02039; F16H2057/02043; F16H2057/0206; F16H57/023; F16H2057/0235; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US776669A
Cited
US961085A
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US1594838A
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US1640463A
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US1861941A
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US2108724A
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US2125456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-16 | 1951-09-15 | 1952-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-16 | 1955-09-15 | 1956-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-16 | 1959-09-15 | 1960-03-16 | $7700.00 | Window Closed / Lapsed |