US2563228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accelerating device fok gas pres
Assignee: —
•
Filing: —
•
Granted: 1951-08-07
•
Expires: 1968-08-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:22
CPC Classifications
F; F02; F02M; F02M21/00; F02M21/02; F02M21/0218; F02M21/023; F02M21/0239; G; G05; G05D; G05D16/00; G05D16/04; G05D16/0402; F23; F23N; F23N2235/00; F23N2235/12; F23N2235/20; Y; Y10; Y10S; Y10S261/00; Y10S261/68; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7748; Y10T137/7749; Y10T137/7781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2313765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |