Patent US2553867A successfully refreshed from Google Patents.
US2553867A
Expired / Lapsed
US
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Power plant
Assignee: Continental Aviation and Engineering Corp
•
Filing: 1946-05-24
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Granted: 1951-05-22
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Expires: 1966-05-24
Abstract
No abstract record available.
Inventors
- 👤 William J Parducci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:38
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/04; F02C3/08; F02C7/00; F02C7/08; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2085761A
Cited
US2162956A
Cited
GB541845A
Cited
US2476179A
Cited
US2358301A
Cited
US2454310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |