US3026085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diagonal flow reversible pump-turbine
Assignee: Allis Chalmers Corp
•
Filing: 1957-11-27
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Granted: 1962-03-20
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Expires: 1977-11-27
Abstract
No abstract record available.
Inventors
- 👤 Warren G Whippen
- 👤 Webster J Mccormack
- 👤 Thoralf K Breda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:44
CPC Classifications
F; F03; F03B; F03B3/00; F03B3/16; F03B3/18; F03B3/183; F03B3/10; F03B3/103; F03B3/12; F03B3/14; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y10; Y10S; Y10S415/00; Y10S415/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB250234A
Cited
US2671635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |