US2999357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction motor
Assignee: Individual
•
Filing: 1958-09-16
•
Granted: 1961-09-12
•
Expires: 1978-09-16
Abstract
No abstract record available.
Inventors
- 👤 Albert W Elling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:15
CPC Classifications
F; F02; F02C; F02C5/00; F02C5/06; F01; F01D; F01D1/00; F01D1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US727698A
Cited
US762175A
Cited
US880458A
Cited
DE231560C
Cited
US1161140A
Cited
US1300903A
Cited
GB305695A
Cited
US2289900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |