Patent US2811570A successfully refreshed from Google Patents.
Patent US869323A successfully refreshed from Google Patents.
US869323A
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Automatic warning-signal for air-brake systems.
Assignee: Individual
•
Filing: 1906-11-07
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Granted: 1907-10-29
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Expires: 1926-11-07
Abstract
No abstract record available.
Inventors
- 👤 Richard Peter Nolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:46
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/065; F16K2200/00; F16K2200/30; F16K2200/304; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7931
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) | 1910-10-28 | 1911-04-29 | 1911-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-10-28 | 1915-04-29 | 1915-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-10-28 | 1919-04-29 | 1919-10-29 | $7700.00 | Window Closed / Lapsed |