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:
Sep. 24, 1991
Filed:
Jan. 03, 1991
Kinoto Yoshida, Kitamoto, JP;
Morizumi Fujii, Nagoya, JP;
Tokihiro Tsuda, Kitakatsushika, JP;
Shigeo Suda, Osato, JP;
Osamu Kodama, Kumagaya, JP;
Kazuro Kuroe, Chichibu, JP;
Takumi Tanikawa, Tokoname, JP;
Michihiko Nishimura, Tokoname, JP;
Hideyuki Munakata, Tokyo, JP;
Abstract
The fracture-free paving block comprises a cement block substrate and a top solid layer, and is characterized in that the top layer is selected from a cured cement mortar layer and tile-like layer firmly bonded to the substrate with cement mortar; the top layer is bonded to the block substrate with lateral margins of 1 to 8 mm wide in horizontal distance from the peripheral edges of the substrate; and the vertical distance from the surface of the top layer to the peripheral edge of the substrate is 5 to 50 mm.