US2953319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertiplane
Assignee: RTX Corp
•
Filing: 1955-01-05
•
Granted: 1960-09-20
•
Expires: 1975-01-05
Abstract
No abstract record available.
Inventors
- 👤 Eugene M Gluhareff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:28
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/22; B64C27/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1655113A
Cited
US2094105A
Cited
US2143137A
Cited
US2187295A
Cited
US2511502A
Cited
US2690886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |