The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 1990
Filed:
Nov. 13, 1985
Applicant:
Inventor:
George C Brookhart, Jr, Littleton, CO (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04D / ;
U.S. Cl.
CPC ...
52553 ; 52535 ; 52536 ; 52543 ; 52544 ; 52547 ;
Abstract
A ballast block is disclosed in the form of a planar plate member. The plate member has a top and bottom surface, front and rear end portions and oppositely disposed lateral edges. The end portions include a mechanism for preventing substantial uplift and rotational displacement of the block when its end portions are interlinked in overlapping relationship with the corresponding end portions of like ballast blocks.