US2694411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-centering valve with spring of slight lateral stability
Assignee: Neyrpic SA
•
Filing: 1951-03-23
•
Granted: 1954-11-16
•
Expires: 1971-03-23
Abstract
No abstract record available.
Inventors
- 👤 Ponsar Yves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:21
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/0413; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7936
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE312946C
Cited
US2254209A
Cited
US797739A
Cited
US868022A
Cited
US1055437A
Cited
CH87254A
Cited
DE673045C
Cited
FR780707A
Cited
US2349155A
Cited
US2470372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |