US3298635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-inflating wings
Assignee: Individual
•
Filing: 1964-03-03
•
Granted: 1967-01-17
•
Expires: 1984-03-03
Abstract
No abstract record available.
Inventors
- 👤 David T Barish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:19
CPC Classifications
B; B64; B64C; B64C31/00; B64C31/028; B64C31/036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A WING COMPRISING A SHEET OF FLEXIBLE MATERIAL HAVING A LEADING EDGE, A TRAILING EDGE AND LATERAL SIDES, AND CATENARY SHAPED LINES CONTINUOUSLY CONNECTED ALONG SAID LATERAL SIDES, SAID LINES EXTENDING THEREFROM AND ADAPTED
Claim 2
Dependent Claim
34 words
A WING COMPRISING A SHEET OF FLEXIBLE MATERIAL HAVING A LEADING EDGE, A TRAILING EDGE AND LATERAL SIDES, AND CATENARY SHAPED LINES CONTINUOUSLY CONNECTED ALONG SAID LATERAL SIDES, SAID LINES EXTENDING THEREFROM AND ADAPTED
References Cited (Backward Citations)
US2536777A
Cited
US2959385A
Cited
US3073555A
Cited
US3131894A
Cited
US3194514A
Cited
US3188020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |