US2447482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1945-04-25
•
Granted: 1948-08-24
•
Expires: 1965-04-25
Abstract
No abstract record available.
Inventors
- 👤 Edwin E Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:44
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/007; Y; Y10; Y10S; Y10S239/00; Y10S239/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US635919A
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GB190320604A
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US1450229A
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FR542528A
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US2072731A
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US2280765A
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DE691430C
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GB484289A
Cited
US2326072A
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US2268464A
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FR879123A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-24 | 1952-02-23 | 1952-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-24 | 1956-02-23 | 1956-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-24 | 1960-02-23 | 1960-08-24 | $7700.00 | Window Closed / Lapsed |