US2601758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural combustion product generator in ring coaxial with turbine
Assignee: Individual
•
Filing: 1945-10-06
•
Granted: 1952-07-01
•
Expires: 1965-10-06
Abstract
No abstract record available.
Inventors
- 👤 Kenneth K Knopf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:39
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/14; F02C3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE241869C
Cited
GB190623123A
Cited
US1025117A
Cited
US1253969A
Cited
GB271268A
Cited
US1868143A
Cited
US2244467A
Cited
GB469180A
Cited
US2272676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |