Patent US2708413A successfully refreshed from Google Patents.
US2708413A
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US
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Rotary piston, power transferer
Assignee: Individual
•
Filing: 1949-09-26
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Granted: 1955-05-17
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Expires: 1969-09-26
Abstract
No abstract record available.
Inventors
- 👤 Loewen Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:49
CPC Classifications
F; F01; F01C; F01C3/00; F01C3/06; F01C20/00; F01C20/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2211417A
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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) | 1958-05-16 | 1958-11-15 | 1959-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-16 | 1962-11-15 | 1963-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-16 | 1966-11-15 | 1967-05-17 | $7700.00 | Window Closed / Lapsed |