US2962904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston-actuating system
Assignee: FRANCAISE POUR LA SEPARATION L'EMULSION ET LE MELANGE SA
•
Filing: 1955-06-17
•
Granted: 1960-12-06
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Expires: 1975-06-17
Abstract
No abstract record available.
Inventors
- 👤 Soccart Fernand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:57
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/12; F04B49/121; F04B1/00; F04B1/04; F04B1/06; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18208; Y10T74/18248; Y10T74/18296; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/2063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US648628A
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US838565A
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US836234A
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US1008401A
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US1062377A
Cited
US1099229A
Cited
US1494764A
Cited
US1595917A
Cited
AT114741B
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US1909955A
Cited
US2450248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |