Patent US2640678A successfully refreshed from Google Patents.
US2640678A
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US
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Fluid translating device
Assignee: Individual
•
Filing: 1947-12-22
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Granted: 1953-06-02
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Expires: 1967-12-22
Abstract
No abstract record available.
Inventors
- 👤 Hilmar A Andresen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:11
CPC Classifications
F; F03; F03B; F03B1/00; F05; F05B; F05B2250/00; F05B2250/30; F05B2250/34; Y; Y02; Y02E; Y02E10/00; Y02E10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
FR362238A
Cited
FR363684A
Cited
US1058121A
Cited
US1208888A
Cited
US2087834A
Cited
US2289231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |