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US2501054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unloader for pumps
Assignee: New York Air Brake LLC
•
Filing: 1948-10-28
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Granted: 1950-03-21
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Expires: 1968-10-28
Abstract
No abstract record available.
Inventors
- 👤 Matthew W Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:54
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/14; F04B1/141; F04B1/143; F04B1/18; F04B49/00; F04B49/08; F04B49/22; F04B49/24; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2622
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) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |