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. 12, 1980
Filed:
Apr. 14, 1978
Applicant:
Inventors:
Friedrich Hanstein, Gross-Zimmern, DE;
Theodor P Moench, Griesheim B. Darmstadt, DE;
Gunter Schreyer, Darmstadt, DE;
Assignee:
Rohm GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; E06B / ; C03C / ;
U.S. Cl.
CPC ...
428 34 ; 428 53 ; 428 68 ; 428120 ; 428161 ; 428177 ; 428913 ;
Abstract
What is disclosed is a double-walled shaped plastic article comprising a first sheet of a synthetic resin having a geometrically regular depression therein, the depressed portions of which are connected to surrounding planar portions of said sheet by a side wall, a circumferential groove in said side wall, and a second sheet of synthetic resin having edge portions pressure fitted into said circumferential groove.