Patent US2614870A successfully refreshed from Google Patents.
US2614870A
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Turbine diaphragm
Assignee: Allis Chalmers Corp
•
Filing: 1946-10-31
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Granted: 1952-10-21
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Expires: 1966-10-31
Abstract
No abstract record available.
Inventors
- 👤 James L Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:05
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/02; F01D11/025; Y; Y10; Y10S; Y10S277/00; Y10S277/926
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1189511A
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US1818061A
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US1952571A
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US2008527A
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US2040762A
Cited
US2228767A
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US2279863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |