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Patent US2482300A successfully refreshed from Google Patents.
US2482300A
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Control apparatus
Assignee: Westinghouse Air Brake Co
•
Filing: 1943-07-14
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Granted: 1949-09-20
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Expires: 1963-07-14
Abstract
No abstract record available.
Inventors
- 👤 Roy R Stevens
- 👤 Arthur G Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:48
CPC Classifications
F; F01; F01L; F01L13/00; F01L2760/00; F01L2760/002; Y; Y10; Y10S; Y10S74/00; Y10S74/08; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18088; Y10T74/18096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1682358A
Cited
US2003351A
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US2103274A
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US2243883A
Cited
US2288173A
Cited
US2289654A
Cited
US2383277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |