Patent US3371683A successfully refreshed from Google Patents.
US3371683A
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US
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Hydraulic valves
Assignee: GE Energy UK Ltd
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Filing: 1964-12-22
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Granted: 1968-03-05
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Expires: 1984-12-22
Abstract
No abstract record available.
Inventors
- 👤 Stephenson James Wardhaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:21
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0605; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87338; Y10T137/87346; Y10T137/877
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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |