US1025341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retaining-valve device.
Assignee: Westinghouse Air Brake Co
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Filing: 1909-09-03
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Granted: 1912-05-07
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Expires: 1929-09-03
Abstract
No abstract record available.
Inventors
- 👤 Walter V Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:49
CPC Classifications
B; B60; B60T; B60T15/00; B60T15/02; B60T15/36; B60T15/54; F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7837; Y10T137/7904; Y10T137/7905; Y10T137/7922; Y10T137/7929
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) | 1915-05-07 | 1915-11-06 | 1916-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-05-07 | 1919-11-06 | 1920-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-05-07 | 1923-11-06 | 1924-05-07 | $7700.00 | Window Closed / Lapsed |