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. 19, 1984
Filed:
Mar. 27, 1981
Applicant:
Inventors:
Ronald Lloyd, Sawbridgeworth, Hertfordshire, GB;
Albert G Patchell, Welwyn Garden City, Hertfordshire, GB;
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ; B29D / ;
U.S. Cl.
CPC ...
428134 ; 264280 ; 2642902 ; 264D / ; 264D / ; 428135 ; 428136 ; 428167 ; 428169 ; 428255 ; 428294 ;
Abstract
A film of synthetic polymer is profiled with a pattern of thick and thin areas so that it can split on stretching into a net; additionally the thin areas are likewise profiled so that either the strands of main net split clearly apart or the orifices of main net are covered by an integral fine net arising from the minor profile. Profiles based on the intersection of sets of parallel grooves on opposite surfaces are preferred for both major and minor profiles.