US3665641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spin down
Assignee: Individual
•
Filing: 1968-07-29
•
Granted: 1972-05-30
•
Expires: 1988-07-29
Abstract
Abstract A toy comprising a airfoil launched from a sling shot type of launcher, the airfoil having a contour which will cause it to spin on its descent after having been projected into the air.
Inventors
- 👤 Clifford W Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:50
CPC Classifications
A; A63; A63H; A63H27/00; A63H27/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
104 words
A spin down toy comprising a one piece member having a generally flat body of tear drop peripheral configuration, said body having a rounded rear end edge, opposite side edges tapering diagonally forward to a pointed edge at the forward end, said edges bounding a flat upper side and a substantially flat lower side, a nose end of said body having means for hooking over an elastic band of a launching device, and said body having means for effecting travel in a spiral helix path with said nose end of said body remaining near the axis of said helix during descent through the air.
Claim 2
Dependent Claim
104 words
A spin down toy comprising a one piece member having a generally flat body of tear drop peripheral configuration, said body having a rounded rear end edge, opposite side edges tapering diagonally forward to a pointed edge at the forward end, said edges bounding a flat upper side and a substantially flat lower side, a nose end of said body having means for hooking over an elastic band of a launching device, and said body having means for effecting travel in a spiral helix path with said nose end of said body remaining near the axis of said helix during descent through the air.
Claim 3
Dependent Claim
62 words
The combination as set forth in claim 1 wherein said forward end has a rearwardly extending hook on said lower side, and a downwardly, arcuate bulge on said lower side adjacent said hook, said bulge extending to approximate longitudinal center of said lower side, and the rear remaining portion of said lower side being flat and parallel to said flat upper side.
References Cited (Backward Citations)
US2313948A
Cited
US2921404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |