US2921560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine control
Assignee: New York Air Brake LLC
•
Filing: 1957-09-23
•
Granted: 1960-01-19
•
Expires: 1977-09-23
Abstract
No abstract record available.
Inventors
- 👤 Budzich Tadeusz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:31
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/08; F01; F01B; F01B3/00; F01B3/10; F01B3/103; F01B3/106; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86485
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2530242A
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US2516924A
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US2643613A
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US2722946A
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US2624321A
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US2769393A
Cited
US2727525A
Cited
US2771843A
Cited
US2785699A
Cited
US2716946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |