US2649052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump or motor
Assignee: MARINE PRODUCTS Co
•
Filing: 1950-12-26
•
Granted: 1953-08-18
•
Expires: 1970-12-26
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand M Weyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:44
CPC Classifications
F; F04; F04C; F04C5/00; Y; Y10; Y10S; Y10S417/00; Y10S417/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE95139C
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US1712157A
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US1989900A
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US2152498A
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US2189356A
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US2455194A
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US2460952A
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US2542268A
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US2542240A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |