Patent US2335983A successfully refreshed from Google Patents.
US3017901A
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US
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Valve assembly
Assignee: AIR VALVES Co
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Filing: 1959-06-15
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Granted: 1962-01-23
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Expires: 1979-06-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick W Hicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:06
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/07; F16K11/0712; Y; Y10; Y10S; Y10S251/00; Y10S251/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1381315A
Cited
US1704759A
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US2349170A
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US2585556A
Cited
US2653580A
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US2713989A
Cited
US2638923A
Cited
US2920650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |