US2364189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling device for turbine rotors
Assignee: Individual
•
Filing: 1941-10-15
•
Granted: 1944-12-05
•
Expires: 1961-10-15
Abstract
No abstract record available.
Inventors
- 👤 Buchi Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:14
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/08; F01D25/12; F01D5/00; F01D5/02; F01D5/08; F01D5/081; F01D5/082; F02; F02C; F02C6/00; F02C6/04; F02C6/10; F02C6/12; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-12-05 | 1948-06-05 | 1948-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-05 | 1952-06-05 | 1952-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-05 | 1956-06-05 | 1956-12-05 | $7700.00 | Window Closed / Lapsed |