Catenary arch barrel building toy

Description

FIG. 1 is a front perspective view of a catenary arch barrel building toy showing my new design, the side opposite being a mirror image;

FIG. 2 is a right side elevational view thereof, the side opposite being a mirror image;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is an enlarged scale view of one of the bottom barrel-shaped building elements resting on the toy base.

Referenced Cited
U.S. Patent Documents
D206012 October 1966 Kristiansen
604708 May 1898 Burton
1568252 January 1926 Strub
1878373 September 1932 Breeser
3604145 September 1971 Zimmerman
Foreign Patent Documents
1174756 March 1959 FRX
Patent History
Patent number: D304465
Type: Grant
Filed: Mar 18, 1988
Date of Patent: Nov 7, 1989
Inventor: Donald L. Andrews (Sanibel, FL)
Primary Examiner: Charles A. Rademaker
Assistant Examiner: Alicia A. Farrell
Attorney: Merrill N. Johnson
Application Number: 7/169,764
Classifications
Current U.S. Class: D21/59; D21/108; D21/114