Patent US2040580A successfully refreshed from Google Patents.
US2040580A
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Assignee: Bendix Westinghouse Automotive Air Brake Co
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Filing: 1931-07-31
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Granted: 1936-05-12
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Expires: 1951-07-31
Abstract
No abstract record available.
Inventors
- 👤 Vorech Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:13
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/26; B60T13/36; B60T15/00; B60T15/02; B60T15/36; F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86919
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) | 1939-05-12 | 1939-11-11 | 1940-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-12 | 1943-11-11 | 1944-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-12 | 1947-11-11 | 1948-05-12 | $7700.00 | Window Closed / Lapsed |