US2559336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draft tube valve
Assignee: PELTON WATER WHEEL Co
•
Filing: 1946-12-09
•
Granted: 1951-07-03
•
Expires: 1966-12-09
Abstract
No abstract record available.
Inventors
- 👤 George V Arata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:21
CPC Classifications
F; F03; F03B; F03B11/00; F03B11/004; F16; F16K; F16K1/00; F16K1/16; Y; Y02; Y02E; Y02E10/00; Y02E10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306391A
Cited
US1474211A
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US1741320A
Cited
US1818050A
Cited
US1920698A
Cited
US1962097A
Cited
US2313177A
Cited
US2375432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |