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. 09, 1980
Filed:
Sep. 13, 1978
Applicant:
Inventor:
Ramsis Gobran, Roseville, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
128287 ; 428 40 ; 428 43 ; 428167 ; 428343 ; 428906 ;
Abstract
Pressure-sensitive adhesive tape, having an untensilized crystalline isotactic polypropylene or linear high density polyethylene film backing with a pattern of alternating ridges and valleys on one side, is especially adapted for use as a tab closure for diapers. The ridges are so disposed that, when a tab is cut from the tape, at least some of the ridges extend at an angle of 60.degree. or less to the lateral edge of the tab, thereby minimizing any tendency toward inadvertent tearing.