Patent US2461279A successfully refreshed from Google Patents.
US2461279A
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Hydraulic circuit
Assignee: New York Air Brake LLC
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Filing: 1946-04-01
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Granted: 1949-02-08
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Expires: 1966-04-01
Abstract
No abstract record available.
Inventors
- 👤 Matthew W Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:02
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/08; F04B49/10; F04B49/106; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/4035; F16H61/46; F16H61/472
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-08 | 1952-08-09 | 1953-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-08 | 1956-08-09 | 1957-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-08 | 1960-08-09 | 1961-02-08 | $7700.00 | Window Closed / Lapsed |