Patent US255745A successfully refreshed from Google Patents.
Patent US4153252A successfully refreshed from Google Patents.
US4153252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerodynamic disc
Assignee: Individual
•
Filing: 1977-10-31
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Granted: 1979-05-08
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Expires: 1997-10-31
Abstract
Abstract An aerodynamic disc-shaped object is provided, comprising a disc, an outer toroidal rim section attached to the periphery of the disc, and a central section disposed within the center of the disc, wherein the central section comprises a substantial amount of the weight of the disc-shaped object for increasing the rotational spin of the object.
Inventors
- 👤 Richard A. Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:23
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/18
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
65 words
An aerodynamic disc-shaped object, comprising: a disc having periphery thereto; an outer rim section attached to the periphery of said disc; and a central section disposed within the center of said disc, said central section comprising a central axis of rotation, said central section additionally comprising a substantial amount of the total weight of said disc-shaped object for increasing the rotational spin of said object.
Claim 2
Dependent Claim
65 words
An aerodynamic disc-shaped object, comprising: a disc having periphery thereto; an outer rim section attached to the periphery of said disc; and a central section disposed within the center of said disc, said central section comprising a central axis of rotation, said central section additionally comprising a substantial amount of the total weight of said disc-shaped object for increasing the rotational spin of said object.
Claim 3
Dependent Claim
16 words
The aerodynamic disc-shaped object of claim 1, wherein said disc is of a planar, cross-sectional configuration.
Claim 4
Dependent Claim
17 words
The aerodynamic disc-shaped object of claim 1, wherein said disc is of a slightly curved cross-sectional configuration.
Claim 5
Dependent Claim
28 words
The aerodynamic disc-shaped object of claim 1, wherein said outer rim section is of a toroidal configuration, said toroidal rim section being partially open at any end cross-section.
Claim 6
Dependent Claim
20 words
The aerodynamic disc-shaped object of claim 1, wherein said central axis comprises a majority of the weight of said object.
Claim 7
Dependent Claim
20 words
The aerodynamic disc-shaped object of claim 5, wherein said central axis comprises 80 percent of the weight of said object.
Claim 8
Dependent Claim
16 words
The aerodynamic disc-shaped object of claim 1, wherein said central axis is of a magnetic material.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |