US3594945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flying toy
Assignee: Individual
•
Filing: 1969-04-14
•
Granted: 1971-07-27
•
Expires: 1989-04-14
Abstract
Abstract A manually projectable flying toy comprising an annulus the cross section of which in any radial plane containing its axis is that of an airfoil having a convex upper surface, the axial thickness of the annulus varying uniformly circumferentially thereof and being a maximum and a minimum at points 180* apart.
Inventors
- 👤 Howard R Turney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:07
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
48 words
A flying device comprising an annulus the cross section of which in any radial plane containing its axis is that of an airfoil having a convex upper surface, the axial thickness of said annulus varying uniformly circumferentially thereof between a maximum and a minimum at points 180* apart.
Claim 2
Dependent Claim
48 words
A flying device comprising an annulus the cross section of which in any radial plane containing its axis is that of an airfoil having a convex upper surface, the axial thickness of said annulus varying uniformly circumferentially thereof between a maximum and a minimum at points 180* apart.
Claim 3
Dependent Claim
17 words
A flying device as defined in claim 1 wherein the lower surface of said annulus is nonconvex.
Claim 4
Dependent Claim
14 words
A flying device according to claim 2 wherein said lower surface is substantially flat.
Claim 5
Dependent Claim
29 words
A flying device as set forth in claim 3 wherein said lower surface is provided therein with circumferentially spaced cavities varying in volume with the thickness of said annulus.
Claim 6
Dependent Claim
16 words
A flying device according to claim 1 wherein said annulus is made of a foamed material.
Claim 7
Dependent Claim
25 words
A flying device as defined in claim 1 wherein the width of said annulus varies uniformly circumferentially thereof with said uniformly circumferentially varying axial thickness.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |