Patent EP0197827A1 successfully refreshed from Google Patents.
US2888943A
Expired / Lapsed
US
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Control valve having constant volume output features
Assignee: American Brake Shoe Co
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Filing: 1957-09-25
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Granted: 1959-06-02
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Expires: 1977-09-25
Abstract
No abstract record available.
Inventors
- 👤 George M Hipple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:49
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/0401; F15B13/0402; F15B13/0403; F15B13/0416; F15B13/0417; F15B13/0418; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2554; Y10T137/2559; Y10T137/2574; Y10T137/2605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2649107A
Cited
US2757641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |