US2434901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine cooling
Assignee: RTX Corp
•
Filing: 1944-08-23
•
Granted: 1948-01-27
•
Expires: 1964-08-23
Abstract
No abstract record available.
Inventors
- 👤 Richard S Buck
- 👤 Kalitinsky Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:38
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/02; F01D11/04; F01D25/00; F01D25/08; F01D25/14; F01D25/24; F01D25/26; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1960810A
Cited
US2080425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-26 | 1951-07-28 | 1952-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-26 | 1955-07-28 | 1956-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-26 | 1959-07-28 | 1960-01-27 | $7700.00 | Window Closed / Lapsed |