Patent US3490474A successfully refreshed from Google Patents.
US3490474A
Expired / Lapsed
US
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Fluid valve
Assignee: ITE Imperial Corp
•
Filing: 1966-06-10
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Granted: 1970-01-20
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Expires: 1986-06-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/16; F16; F16K; F16K47/00; F16K47/08; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2087; Y10T137/2109
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3324891A
Cited
US3195303A
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US3320815A
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US3290947A
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US3267946A
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US3219048A
Cited
US3334657A
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US3336931A
Cited
US3368577A
Cited
US3351080A
Cited
US3343790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |