Dual stud construction toy block

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Description

FIG. 1 is a top perspective view of a dual stud construction toy block according to the invention;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view threrof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view thereof, the opposite side elevational view being identical; and,

FIG. 6 is an end elevational view thereof, the opposite end elevational view thereof being identical.

Referenced Cited
U.S. Patent Documents
D239647 April 1976 Knudsen
D256606 August 26, 1980 Hoggard
D354319 January 10, 1995 Wilson
D373606 September 10, 1996 Knudsen
1689107 October 1928 Bradley
1971545 August 1934 Tompkins
2861388 November 1958 Favaretto
3162973 December 1964 Christiansen
3220141 November 1965 Goss, III
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3877170 April 1975 Bakker
4246718 January 27, 1981 Chatani
4305221 December 15, 1981 Chatani
4306373 December 22, 1981 Chatani et al.
5230195 July 27, 1993 Sease
5683283 November 4, 1997 Glynn
Foreign Patent Documents
229861 August 1960 AUX
0 039 100 November 1981 EPX
1150976 January 1958 FRX
1180316 December 1958 FRX
24 29 491 January 1975 DEX
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1049484 November 1966 GBX
Patent History
Patent number: D420711
Type: Grant
Filed: Dec 21, 1998
Date of Patent: Feb 15, 2000
Assignee: Connector Set Limited Partnership (Hatfield, PA)
Inventor: Joel I. Glickman (Huntingdon Valley, PA)
Primary Examiner: Raphael Barkai
Law Firm: Schweitzer Cornman Gross & Bondell LLP
Application Number: 0/98,085
Classifications
Current U.S. Class: Curved Surface (D21/503); Angled Surface (D21/504)
International Classification: 2101;