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Patent US2922432A successfully refreshed from Google Patents.
US2922432A
Expired / Lapsed
US
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Reversible cartridge speed control valve
Assignee: Ross Operating Valve Co
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Filing: 1957-05-09
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Granted: 1960-01-26
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Expires: 1977-05-09
Abstract
No abstract record available.
Inventors
- 👤 Andrew B Huntington
- 👤 Bernard W Ames
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:57
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/08; F16K47/10; F16K15/00; F16K15/02; F16K15/04; F16K15/044; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/5153; Y10T137/7504; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/7849; Y10T137/7904; Y10T137/7922; Y10T137/7927; Y10T137/8593; Y10T137/87265; Y10T137/87539; Y10T137/87555
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |