US3057376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacked plate type fluid operated valve
Assignee: BP PLC
•
Filing: 1960-05-03
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Granted: 1962-10-09
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Expires: 1980-05-03
Abstract
No abstract record available.
Inventors
- 👤 Agutter Ronald Graham
- 👤 Parkes Brian John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:03
CPC Classifications
F; F15; F15C; F15C5/00; F16; F16K; F16K31/00; F16K31/12; F16K31/126; F16K31/1268; G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/16; G01N30/20; G01N2030/205; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87153
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |