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:
Jun. 04, 1985
Filed:
Jul. 01, 1983
Applicant:
Inventors:
Frank B Mercer, Blackburn, GB;
Keith F Martin, Lancashire, GB;
Assignee:
Netlon Limited, Blackburn, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
264514 ; 15624414 ; 264564 ; 264146 ; 264167 ; 2642092 ; 4253261 ; 425381 ;
Abstract
A unitary tubular product having an inner layer and an outer layer connected together by a bi-planar mesh formed of helical ribs bonded at their cross-over points is produced in a single coaxial tubular extrusion process, the structure being integrally or confluently extruded. The extruder die head has annular flow channels having closely-spaced die grooves.
Mercer, Frank. (1985). Method of making internally cross-ribbed plastics material structure (U.S. Patent No. 4521368). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4521368
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile