US935709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety-valve.
Assignee: Westinghouse Air Brake Co
•
Filing: 1905-09-19
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Granted: 1909-10-05
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Expires: 1925-09-19
Abstract
No abstract record available.
Inventors
- 👤 Walter V Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:28
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/0433; F16K47/00; F16K47/01; F16K47/011; F16K47/0111; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738; Y10T137/7837; Y10T137/785; Y10T137/7866; Y10T137/7867
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) | 1912-10-04 | 1913-04-05 | 1913-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-10-04 | 1917-04-05 | 1917-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-10-04 | 1921-04-05 | 1921-10-05 | $7700.00 | Window Closed / Lapsed |