Roof construction
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 26, 1985
Grant Date -
N/A
app pub date -
Aug 5, 1983
filing date -
Aug 5, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A roof construction comprising ballast blocks each having two parallel edges bevelled at substantially identical angles of 12.degree. to 23.degree. from the vertical, the remaining two edges being substantially vertical, the blocks being laid in a pattern adjacent each rectangular corner of the roof so that downwardly and outwardly bevelled edges are adjacent each roof edge at the corner.
First Claim
Family
International Classification(s)
Cited Art Landscape
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