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:
Apr. 24, 2001
Filed:
Dec. 15, 1998
Applicant:
Inventor:
Mieko Sakai, Tokyo, JP;
Assignee:
Doppel Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 3/912 ; B29C 5/304 ; B29C 5/384 ;
U.S. Cl.
CPC ...
B29C 3/912 ; B29C 5/304 ; B29C 5/384 ;
Abstract
A method for manufacturing artificial stone having a curved surface or a deformed shape including the steps of heating a plate-like artificial stone forming body, whose surface has previously been polished or roughened, to a temperature ranging from 120° C. to 200° C. under a pressurized atmosphere equal to or higher than 3 atms so as to soften and deform it to a predetermined curved surface or deformed shape and cooling it to a temperature not higher than 90° C.