US2472050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Governing apparatus
Assignee: Baldwin Locomotive Works
•
Filing: 1943-11-27
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Granted: 1949-05-31
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Expires: 1963-11-27
Abstract
No abstract record available.
Inventors
- 👤 Dana R Staples
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:51
CPC Classifications
F; F02; F02P; F02P5/00; F02P5/04; F02P5/05; F02P5/06; F02D; F02D1/00; F02D2700/00; F02D2700/02; F02D2700/0269; F02D2700/0282; F02D2700/0297; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/108; Y10T137/1116; Y10T137/1171
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1061006A
Cited
US1675212A
Cited
US1967851A
Cited
US1976820A
Cited
US2098761A
Cited
US2270306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |