US3425432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bistable fluid amplifier
Assignee: Corning Glass Works
•
Filing: 1965-04-29
•
Granted: 1969-02-04
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Expires: 1985-04-29
Abstract
No abstract record available.
Inventors
- 👤 Lawrence W Langley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:32
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/08; F15C1/10; F15C1/14; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2229; Y10T137/224; Y10T137/2245; Y10T137/2251
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3024805A
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US3226023A
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US3158166A
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US3260271A
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US3266508A
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US3270758A
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US3275016A
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US3232305A
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US3282281A
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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) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |