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US3964746A Expired / Lapsed US ⏱️ 0.0 years remaining

Magnetic game device

Assignee: Individual
•
Filing: 1975-06-09
•
Granted: 1976-06-22
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Expires: 1995-06-09
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Abstract

Abstract A magnetic game device comprises a game board composed of a non-magnetic material and a pair of playing pieces that magnetically cooperate with one another. The game board is formed with a U-shaped channel for slidably receiving one of the playing pieces. The other playing piece is maneuvered near the one playing piece in the channel for moving the one playing piece along the channel without having the playing pieces contact one another.

Inventors

  • 👤 Ronald L. MacMurdo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 10:03
CPC Classifications
A; A63; A63F; A63F7/00; A63F7/0088

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 139 words
A magnetic game device for determining the skill of a player, said game device comprising: a. a game board composed of a non-magnetic material, said game board formed with a channel; and b. a pair of magnetically cooperating playing pieces, one of said playing peices composed of a magnetized material, the other of said playing pieces composed of a magnetically responsive material, said playing pieces slidably received within said channel; c. one of said playing pieces constrained for movement within said channel along a longitudinal axis thereof, said one playing piece moved along said channel by the player maneuvering the other of said playing pieces relative to said one playing piece while said playing pieces are disengaged, a portion of said one playing piece and a portion of said other playing piece disposed in a common, substantially horizontal plane.
Claim 2
Dependent Claim 139 words
A magnetic game device for determining the skill of a player, said game device comprising: a. a game board composed of a non-magnetic material, said game board formed with a channel; and b. a pair of magnetically cooperating playing pieces, one of said playing peices composed of a magnetized material, the other of said playing pieces composed of a magnetically responsive material, said playing pieces slidably received within said channel; c. one of said playing pieces constrained for movement within said channel along a longitudinal axis thereof, said one playing piece moved along said channel by the player maneuvering the other of said playing pieces relative to said one playing piece while said playing pieces are disengaged, a portion of said one playing piece and a portion of said other playing piece disposed in a common, substantially horizontal plane.
Claim 3
Dependent Claim 33 words
The magnetic game device of claim 1 wherein said game board includes scoring indicia disposed along said channel, a player's score being indicated on said scoring indicia when said playing pieces are engaged.
Claim 4
Dependent Claim 17 words
The magnetic game device of claim 1 wherein said game board includes holders for said playing pieces.
Claim 5
Dependent Claim 38 words
The magnetic game device of claim 1 wherein one of said playing pieces is a magnet in the form of a cylinder and the other of said playing pieces is a steel bearing having a substantially cylindrical form.
Claim 6
Dependent Claim 34 words
The magnetic game device of claim 4 wherein the diameter of said magnet is approximately seven eights of an inch and the diameter of said steel bearing is approximately three eights of an inch.
Claim 7
Dependent Claim 188 words
A magnetic game device for determining the skill of a player, said game device comprising: a. a game board composed of a non-magnetic material, said game board formed with a channel; and b. a pair of magnetically cooperating playing pieces, one of said playing pieces composed of a magnetized material, the other of said playing pieces composed of a magnetically responsive material, at least one of said playing pieces slidably received within said channel; c. said playing piece within said channel being moved along said channel by the player maneuvering said other playing piece while said playing pieces are disengaged; d. one of said playing pieces being a magnet in the form of a cylinder and the other of said playing pieces being a steel bearing having a substantially cylindrical form, the diameter of said magnet is approximately seven-eights of an inch and the diameter of said steel bearing is approximately three-eights of an inch; e. said channel having a substantially semi-circular profile in right cross section, the diameter of which is approximately three-eights of an inch, said magnet and said steel bearing slidably received in said channel.
Claim 8
Dependent Claim 188 words
A magnetic game device for determining the skill of a player, said game device comprising: a. a game board composed of a non-magnetic material, said game board formed with a channel; and b. a pair of magnetically cooperating playing pieces, one of said playing pieces composed of a magnetized material, the other of said playing pieces composed of a magnetically responsive material, at least one of said playing pieces slidably received within said channel; c. said playing piece within said channel being moved along said channel by the player maneuvering said other playing piece while said playing pieces are disengaged; d. one of said playing pieces being a magnet in the form of a cylinder and the other of said playing pieces being a steel bearing having a substantially cylindrical form, the diameter of said magnet is approximately seven-eights of an inch and the diameter of said steel bearing is approximately three-eights of an inch; e. said channel having a substantially semi-circular profile in right cross section, the diameter of which is approximately three-eights of an inch, said magnet and said steel bearing slidably received in said channel.
Claim 9
Dependent Claim 179 words
A magnetic game device for determining the skill of a player, said game device comprising: a. a game board formed with a longitudinally extending U-shaped channel, said game board composed of a nonmagnetic material; b. first and second magnetically cooperating playing pieces disposed in said channel in a common, substantially horizontal plane for engagement and disengagement with one another, one of said playing pieces composed of a magnetized material, the other of said playing pieces composed of a magnetically responsive material; and c. scoring indicia longitudinally disposed about said channel for indicating the player's score; d. said first playing piece constrained for movement within said channel along a longitudinal axis thereof, said first playing piece moved along said channel by the player maneuvering said second playing piece relative to said first playing piece, the cooperative magnetic properties of said playing pieces being such that said second playing piece is operative to move said first playing piece along said channel while said playing pieces are disengaged, the player's score being indicated on said indicia when said playing piece are engaged.
Claim 10
Dependent Claim 179 words
A magnetic game device for determining the skill of a player, said game device comprising: a. a game board formed with a longitudinally extending U-shaped channel, said game board composed of a nonmagnetic material; b. first and second magnetically cooperating playing pieces disposed in said channel in a common, substantially horizontal plane for engagement and disengagement with one another, one of said playing pieces composed of a magnetized material, the other of said playing pieces composed of a magnetically responsive material; and c. scoring indicia longitudinally disposed about said channel for indicating the player's score; d. said first playing piece constrained for movement within said channel along a longitudinal axis thereof, said first playing piece moved along said channel by the player maneuvering said second playing piece relative to said first playing piece, the cooperative magnetic properties of said playing pieces being such that said second playing piece is operative to move said first playing piece along said channel while said playing pieces are disengaged, the player's score being indicated on said indicia when said playing piece are engaged.
Claim 11
Dependent Claim 56 words
The magnetic game board of claim 7 wherein said channel has a surface finish that is sufficiently rough to prevent frictionless movement of said first playing piece and is sufficiently smooth to allow the magnetic properties of said second playing piece to move said first playing piece along said channel while said playing pieces are disengaged.
Claim 12
Dependent Claim 54 words
The magentic game of claim 7 wherein said second playing piece is a magnet and said first playing piece is a steel bearing, each of said playing pieces having a substantially circular profile in right cross section, the diameter of said second playing piece being approximately twice the diameter of said first playing piece.

References Cited (Backward Citations)

DE263833C Cited
GB189418841A Cited
US1988071A Cited
US2853830A Cited
US3195894A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-06-22 1979-12-22 1980-06-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-06-22 1983-12-22 1984-06-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-06-22 1987-12-22 1988-06-22 $7700.00 Window Closed / Lapsed

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