US2847183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure valve
Assignee: Sulzer AG
•
Filing: 1953-11-27
•
Granted: 1958-08-12
•
Expires: 1973-11-27
Abstract
No abstract record available.
Inventors
- 👤 Buri Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:26
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/42; F16K47/00; F16K47/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US852819A
Cited
US841817A
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US906665A
Cited
US916403A
Cited
US1547398A
Cited
US1733421A
Cited
US1898816A
Cited
US2642262A
Cited
US2741264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |