Patent
   D311975
Priority
Nov 27 1986
Filed
May 27 1987
Issued
Nov 06 1990
Expiry
Nov 06 2004
Assg.orig
Entity
unknown
3
3
n/a
The ornamental design for a glass building block, as shown and described.

FIG. 1 is a front perspective view of a glass building block showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is an elevational view thereof taken from the bottom of FIG. 5;

FIG. 4 is an elevational view thereof taken from the left of FIG. 5;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a cross-sectional view taken along line 6--6 of FIG. 2.

Hackeslberger, Frenzjosef

Patent Priority Assignee Title
D340774, Nov 05 1991 J. Weck GmbH u. Co. Glassblock
D362310, Apr 08 1994 Pittsburgh Corning Corporation Glass block
D472649, Apr 06 2001 CERAMGRES S R L Glass listel for indoor decoration
Patent Priority Assignee Title
4636413, Dec 18 1984 Westerwald AG fur Silikatindustrie Corner glass block
4651486, May 31 1985 Pittsburgh Corning Corporation Translucent block for wall and column structures
114086,
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