Patent US3023783A successfully refreshed from Google Patents.
US3023783A
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US
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Ball valve
Assignee: Fisher Governor Co
•
Filing: 1958-07-21
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Granted: 1962-03-06
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Expires: 1978-07-21
Abstract
No abstract record available.
Inventors
- 👤 Vickery Edgar Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:50
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/52; F16K31/528; F16K31/5284; F16K31/12; F16K31/16; F16K31/163; F16K31/1635; F16K39/00; F16K39/06; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86509; Y10T137/86718; Y10T137/86743; Y10T137/86751
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US512892A
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US1066623A
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FR554267A
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DE744193C
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US2547116A
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US2699555A
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US2672885A
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US2882010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |