US3174453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sail
Assignee: Individual
•
Filing: 1962-06-05
•
Granted: 1965-03-23
•
Expires: 1982-06-05
Abstract
No abstract record available.
Inventors
- 👤 Lemoigne Pierre Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:52
CPC Classifications
B; B63; B63H; B63H9/00; B63H9/04; B63H9/06; B63H9/067
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
A BALLON SAIL PRESENTING WHEN INFLATED BY THE WIND OPPOSITE CONCAVO-CONVEX SURFACES AND COMPRISING A PLURALITY OF PANEL SECTIONS FORMING EACH AIR NOZZLE MEANS ADAPTED TO DEFLECT THE AIR ENTERING THE NOZZLE MEAND FROM THE WINDWARD SIDE OF THE AIR ENTERING THE NOZZLE MEANS FROM IN A DOWNWARD DIRECTION SUBSTANTIALLY TANGENTIALLY OF THE CONVEX SURFACE OF THE INFLATED SAIL SO AS TO PRODUCE A REACTING LIFT COMPONENT AS WELL AS A POWER INCREASING SUCTION EFFECT BY IMPARTING VELOCITY TO THE AIR AT SAID OTHER SIDE OF THE SAIL.
References Cited (Backward Citations)
FR325763A
Cited
US721286A
Cited
GB354131A
Cited
US1849965A
Cited
US2858789A
Cited
US2971488A
Cited
FR1214095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |