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:
Jan. 09, 1979
Filed:
Oct. 30, 1975
Applicant:
Inventors:
Ronald Lloyd, Sawbridgeworth, GB;
William O Murphy, Sawbridgeworth, GB;
Albert G Patchell, Welwyn Garden City, GB;
Peter J Herbert, Bishops Stortford, GB;
Assignee:
Smith & Nephew Research Limited, Harlow, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L / ;
U.S. Cl.
CPC ...
128156 ; 428136 ; 428156 ; 428145 ; 428317 ; 428343 ; 428910 ;
Abstract
A non-woven fabric is produced by stretching the film with on one surface a regular pattern of raised areas such as spaced hexagonal bosses and on the other surface a plurality of parallel grooves. Stretching is carried out in the groove direction. Preferably the polymer is a mixture of incompatible polymers so that on stretching a fibrous structure is formed. The film can be produced by melt-embossing. The stretched non-woven fabric may be coated with various adhesives to provide a tape useful in a medical context.