US2427244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine
Assignee: General Electric Co
•
Filing: 1944-03-07
•
Granted: 1947-09-09
•
Expires: 1964-03-07
Abstract
No abstract record available.
Inventors
- 👤 Donald F Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:19
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/041; F01D5/00; F01D5/02; F01D5/08; F01D5/081; F01D5/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB354888A
Cited
US2225769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-08 | 1951-03-10 | 1951-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-08 | 1955-03-10 | 1955-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-08 | 1959-03-10 | 1959-09-09 | $7700.00 | Window Closed / Lapsed |