Title:
Four cavity building block
United States Patent D304501


Inventors:
Vanwassehnova, Emerson J. (Shawnee, KS)
Sagar, Percy K. (Shawnee, KS)
Application Number:
07/015868
Publication Date:
11/07/1989
Filing Date:
02/17/1987
Assignee:
Lithibar Matik, Inc. (Holland, MI)
Primary Class:
Field of Search:
D25/113-118, 52/424, 52/425, 52/426, 52/562, 52/586, 52/589, 52/593, 52/590, 52/594, 52/606
View Patent Images:
US Patent References:
4671039BlockJune, 1987Hunt52/593
4597238Highly insulating brick for masonryJuly, 1986VadalaD25/116
D179185N/ANovember, 1956BranhamD25/116
1887701Building tileNovember, 1932StevensD25/118



Primary Examiner:
Word, Hugo A.
Attorney, Agent or Firm:
Mattern, Ware, Stoltz & Fressola
Claims:
1. The ornamental design for a four cavity building block, as shown anddescribed.

Description:

FIG. 1 is a perspective view of a four cavity building block showing our new design.

FIG. 2 is an end elevational view thereof, the other end being a mirror image thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a side elevational view thereof, the other side being a mirror image thereof.

FIG. 5 is a bottom plan view thereof.