US2814306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low friction valve
Assignee: Neyrpic SA
•
Filing: 1952-05-15
•
Granted: 1957-11-26
•
Expires: 1972-05-15
Abstract
No abstract record available.
Inventors
- 👤 Ponsar Yves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:44
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0166; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7413; Y10T137/7423; Y10T137/7426; Y10T137/7436; Y10T137/7439
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US538802A
Cited
US1311830A
Cited
US755000A
Cited
US791382A
Cited
US800340A
Cited
US977807A
Cited
US1032704A
Cited
US1175253A
Cited
US1349267A
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US1477393A
Cited
US1799667A
Cited
US1906313A
Cited
US1915716A
Cited
US1934314A
Cited
US2200091A
Cited
GB538124A
Cited
US2352249A
Cited
US2299707A
Cited
US2479688A
Cited
US2646060A
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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) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |