Patent US1633773A successfully refreshed from Google Patents.
US1633773A
Expired / Lapsed
US
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Vehicle brake mechanism
Assignee: Westinghouse Air Brake Co
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Filing: 1922-09-22
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Granted: 1927-06-28
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Expires: 1942-09-22
Abstract
No abstract record available.
Inventors
- 👤 John F Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:43
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/241; B60T13/246; B60T13/247
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) | 1930-06-27 | 1930-12-27 | 1931-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-06-27 | 1934-12-27 | 1935-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-06-27 | 1938-12-27 | 1939-06-28 | $7700.00 | Window Closed / Lapsed |