Patent US2653549A successfully refreshed from Google Patents.
US2653549A
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US
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Eccentric pump
Assignee: MASSEY HARRIS CO Ltd
•
Filing: 1949-03-23
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Granted: 1953-09-29
•
Expires: 1969-03-23
Abstract
No abstract record available.
Inventors
- 👤 Lorne F Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:01
CPC Classifications
F; F04; F04C; F04C15/00; Y; Y10; Y10S; Y10S417/00; Y10S417/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2266191A
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US2403532A
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US2418412A
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US2491670A
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US2487721A
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US2558970A
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US2462214A
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US2462732A
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US2510609A
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US2471915A
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US2517862A
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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) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |