US2559541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coal pusher
Assignee: Read Standard Corp
•
Filing: 1946-12-11
•
Granted: 1951-07-03
•
Expires: 1966-12-11
Abstract
No abstract record available.
Inventors
- 👤 Martin Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:41
CPC Classifications
F; F23; F23K; F23K3/00; F23K2203/00; F23K2203/004; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86413
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1233710A
Cited
US1400766A
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US1952690A
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US2072325A
Cited
US1893246A
Cited
US2062763A
Cited
US2165966A
Cited
US2161373A
Cited
US2298457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |