US3854725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric chess game boards
Assignee: Individual
•
Filing: 1973-08-06
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Granted: 1974-12-17
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Expires: 1993-08-06
Abstract
Abstract A chess board whose field of squares contains electrical sockets, one in each square. The chess pieces are made with center plugs to connect electrically when deposited to fit the plugs in the sockets; and each chess piece is hollow and of translucent material, with an internal lamp lighted when the chess piece is played. A system of electrical connections is located on the under side of the board; and the latter has a bottom compartment for an electrical power unit.
Inventors
- 👤 P Cluck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:54
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00643
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
76 words
A game board with a field of squares, playing pieces deposited on desired squares when played, and means actuated by the deposit of any playing piece to illuminate said piece comprising electric sockets contained in said field squares, rods in the bottom of said game board extending in parallelism under said squares and attached to said sockets along said rods, a bar connecting said rods and an electrical circuit with one terminal connected to said bar.
Claim 2
Dependent Claim
76 words
A game board with a field of squares, playing pieces deposited on desired squares when played, and means actuated by the deposit of any playing piece to illuminate said piece comprising electric sockets contained in said field squares, rods in the bottom of said game board extending in parallelism under said squares and attached to said sockets along said rods, a bar connecting said rods and an electrical circuit with one terminal connected to said bar.
Claim 3
Dependent Claim
46 words
The game board according to claim 1 wherein said playing pieces are made of translucent material to glow when illuminated, each piece having at least one illumination device interiorly positioned therein, said pieces glowing whichever way said pieces may face or be turned on said square.
Claim 4
Dependent Claim
13 words
The game board according to claim 1 wherein said playing pieces are chessmen.
Claim 5
Dependent Claim
13 words
The game board according to claim 1 wherein said playing pieces are checkers.
Claim 6
Dependent Claim
75 words
The game board structure of claim 1 further comprising a plug carried by each playing piece to fit the socket on the deposit of the said piece, strips underneath the game board extending in parallelism transversely of said rods, the plugs of the said pieces contacting the strips when the said pieces are deposited in playing position on said squares, a bar connecting the strips, said electrical circuit with a terminal connected to said bar.
Claim 7
Dependent Claim
25 words
The game board of claim 5, said first-mentioned bar connecting the rods at one of their ends, and said second-mentioned bar connecting the strips likewise.
Claim 8
Dependent Claim
28 words
The game board of claim 1, lateral areas extended from said field, and simulated sockets contained in said areas for the deposit of captured or spare chess pieces.
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) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |