Patent US2845048A successfully refreshed from Google Patents.
US2845048A
Expired / Lapsed
US
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Rotary liquid motors
Assignee: Avery Hardoll Ltd
•
Filing: 1954-06-22
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Granted: 1958-07-29
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Expires: 1974-06-22
Abstract
No abstract record available.
Inventors
- 👤 Fraser John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:51
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/30; F01C1/34; F01C1/344; F01C1/3441; G; G01; G01F; G01F3/00; G01F3/02; G01F3/04; G01F3/06; G01F3/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US461533A
Cited
US1430929A
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US802843A
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US1053767A
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US1364014A
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CH136999A
Cited
US1953378A
Cited
US2241132A
Cited
US2465997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |