US3453828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket propulsion unit for operation by liquid monofuel
Assignee: Plessey Overseas Ltd
•
Filing: 1967-02-16
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Granted: 1969-07-08
•
Expires: 1987-02-16
Abstract
No abstract record available.
Inventors
- 👤 Dennis G Rawlings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:02
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/80; F02K9/84; F02K9/42; F02K9/44; F02K9/50; F02K9/60; F02K9/68; F02K9/95
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2870603A
Cited
US2955649A
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US2868478A
Cited
US2949006A
Cited
US3010279A
Cited
US2971097A
Cited
GB771896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |