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:
Oct. 18, 1988
Filed:
Oct. 21, 1987
Applicant:
Inventor:
Noel L Douglas, Chippewa Falls, WI (US);
Assignee:
El Paso Products Company, Odessa, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
264 22 ; 5128 / ; 264154 ; 264162 ; 264284 ; 264340 ; 4251 / ;
Abstract
A vapor and liquid permeable porous film suitable for disposable sanitary apparel structures is produced by first abrading an unoriented film by passing it through at least one set of at least two cooperating nip rollers, each having an abrasive grit surface and then subjecting the unoriented abraded film to a corona treatment.