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:
Dec. 21, 1993
Filed:
Nov. 20, 1991
Applicant:
Inventors:
Takamitsu Anno, Tokyo, JP;
Kanji Katsukawa, Yokohama, JP;
Assignee:
Koken Kaihatsu Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04F / ; B32B / ;
U.S. Cl.
CPC ...
156 71 ; 156284 ; 156310 ;
Abstract
A waterproof sheet for concrete structures comprising a sheet made of a thermoplastic synthetic resin, and powder of cement which is pressed against the sheet and adhered to one side surface or both side surfaces of the sheet. There are also disclosed a method of manufacturing a waterproof sheet for concrete structures and a method of applying a waterproof sheet to the concrete structure.