US2831653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling structure for turbine wheels
Assignee: General Electric Co
•
Filing: 1952-03-08
•
Granted: 1958-04-22
•
Expires: 1972-03-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Alford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:02
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/08; F01D5/085; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2432359A
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US2434134A
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US2414840A
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US2414841A
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US2390506A
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US2442579A
Cited
US2440069A
Cited
GB584873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |