Joint element for construction set

- Matrix Toys, Inc.
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Description

FIG. 1 is a top perspective view of a joint element for construction set showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevational view thereof; and,

FIG. 5 is a side elevational view of the side opposite that shown in FIG. 4 .

Referenced Cited
U.S. Patent Documents
D15726 January 1885 Smith
3632147 January 1972 Finger
3982841 September 28, 1976 Endzweig
Foreign Patent Documents
539143 November 1931 DE2
Patent History
Patent number: D255472
Type: Grant
Filed: Jan 9, 1978
Date of Patent: Jun 17, 1980
Assignee: Matrix Toys, Inc. (Portland, OR)
Inventor: Richard J. Gabriel (Beaverton, OR)
Primary Examiner: Charles A. Rademaker
Attorney: Daniel P. Chernoff
Application Number: 5/868,283
Classifications
Current U.S. Class: D21/108; D/8354; D/8382; Framing Unit, E.g., Building Frame (11) (D25/61)
International Classification: D2101;