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. 06, 2011
Filed:
Dec. 06, 2006
Applicants:
Gian Luca Guerrini, Milan, IT;
Roberta Alfani, Bergamo, IT;
Inventors:
Gian Luca Guerrini, Milan, IT;
Roberta Alfani, Bergamo, IT;
Assignee:
Italcementi S.p.A., Bergamo, IT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01D 5/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for the production by extrusion of piping made of a cementitious material having a circular section and fine thickness, suitable for the channeling of liquids and gases at atmospheric operating pressure or slightly higher.