Patent US2912069A successfully refreshed from Google Patents.
US2912069A
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US
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Noiseless piston device
Assignee: PROCEDO GmbH
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Filing: 1956-12-19
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Granted: 1959-11-10
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Expires: 1976-12-19
Abstract
No abstract record available.
Inventors
- 👤 Dillenburger Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:07
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/36; F16F9/368; F16F9/3207; F16F9/3214; F16F9/34; F16F9/3415; F16J; F16J1/00; F16J1/09; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7779
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2507268A
Cited
US2646859A
Cited
US2649936A
Cited
US2760603A
Cited
FR1077606A
Cited
FR1083043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |