Patent US4859529A successfully refreshed from Google Patents.
US3508563A
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US
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Precision control of fluid flow
Assignee: Textron Inc
•
Filing: 1966-09-27
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Granted: 1970-04-28
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Expires: 1986-09-27
Abstract
No abstract record available.
Inventors
- 👤 Richard E Ripley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:57
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/14; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2267
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3148691A
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US3181546A
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US3240221A
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US3362421A
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US3269419A
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US3217727A
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US3405736A
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US3362422A
Cited
FR1454063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |