US2617622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axially movable rotary valve
Assignee: PELTON WATER WHEEL Co
•
Filing: 1947-02-04
•
Granted: 1952-11-11
•
Expires: 1967-02-04
Abstract
No abstract record available.
Inventors
- 👤 White Ira Morgan
- 👤 David P Billings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:34
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K11/083; F16K11/0833; F16K5/00; F16K5/08; F16K5/14; F16K5/16; F16K5/162; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86501
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US156087A
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US912890A
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FR400078A
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US1166571A
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FR442860A
Cited
CH96037A
Cited
US1678204A
Cited
US2071814A
Cited
US2209992A
Cited
FR898484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |