US2636343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction propulsion engine
Assignee: Individual
•
Filing: 1949-05-27
•
Granted: 1953-04-28
•
Expires: 1969-05-27
Abstract
No abstract record available.
Inventors
- 👤 Ernest O Painter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:25
CPC Classifications
F; F02; F02K; F02K3/00; F02K3/02; F02K3/04; F02K3/06; Y; Y10; Y10S; Y10S277/00; Y10S277/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB347206A
Cited
US2304008A
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US2396911A
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US2404767A
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US2409446A
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US2400714A
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US2479777A
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US2509890A
Cited
US2444742A
Cited
US2445856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |