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. 01, 1987
Filed:
Jan. 25, 1985
Mitsuboshi Sangyo Co. Ltd., Tokyo, JP;
Abstract
A method for manufacturing a thick asphalt sheet comprises preparing a thick sheet material made of non-woven fabric of synthetic material, passing said sheet material through at least one pair of pressing rolls from the upper side to the lower side and feeding and storing molten petroleum asphalt into a concavity formed on the upper side of said pair of rolls, whereby the molten petroleum asphalt is pressed into the sheet material when said material passes through said pair of rolls, thereby forming an asphalt sheet. The asphalt sheet thus manufactured is immediately led onto a processed ground surface to form a waterproofing layer thereon.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile