Patent US2756007A successfully refreshed from Google Patents.
US2756007A
Expired / Lapsed
US
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Jet-powered convertible aircraft
Assignee: Individual
•
Filing: 1951-02-20
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Granted: 1956-07-24
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Expires: 1971-02-20
Abstract
No abstract record available.
Inventors
- 👤 Isidor B Laskowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:28
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/04; B64C27/12; B64C27/16; B64C27/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1429646A
Cited
US1877902A
Cited
US2396130A
Cited
FR928469A
Cited
FR931296A
Cited
US2596435A
Cited
GB627117A
Cited
US2606692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |