US3012402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vortex flow reaction chambers
Assignee: Power Jets Research and Development Ltd
•
Filing: 1957-07-16
•
Granted: 1961-12-12
•
Expires: 1977-07-16
Abstract
No abstract record available.
Inventors
- 👤 Probert Rhys Price
- 👤 Roberson Edwin Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:04
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/42; F23R3/58; F23R3/425; F23R2900/00; F23R2900/03041; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2089329A
Cited
US2523462A
Cited
US2577918A
Cited
US2692479A
Cited
US2706150A
Cited
GB719380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |