Patent US3426800A successfully refreshed from Google Patents.
US3426800A
Expired / Lapsed
US
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Bistable fluid valves
Assignee: Bowles Engineering Corp
•
Filing: 1965-10-15
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Granted: 1969-02-11
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Expires: 1985-10-15
Abstract
No abstract record available.
Inventors
- 👤 Peter Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:38
CPC Classifications
F; F15; F15C; F15C3/00; F15C3/08; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/212; Y10T137/2125; Y10T137/218; Y10T137/2202; Y10T137/2213; Y10T137/8593; Y10T137/86493; Y10T137/877; Y10T137/87708; Y10T137/87772
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3273594A
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US3099995A
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US3071154A
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US3171915A
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US3168898A
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US3187762A
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US3258685A
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US3252481A
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US3266514A
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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) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |