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:
Apr. 27, 1999
Filed:
Dec. 31, 1996
Applicant:
Inventors:
Clyde D Calhoun, Grant, MN (US);
David C Koskenmaki, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St Paul, MN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ; E04F / ;
U.S. Cl.
CPC ...
428 418 ; 428156 ; 428220 ;
Abstract
A carrier web having at least one surface that is multiple, sequentially embossed, wherein depressions created from the prior embossing patterns(s) are preserved during the subsequent embossing pattern(s) even though the subsequent embossing pattern(s) are superimposed on the depressions from the prior embossing pattern(s). The patterns of embossing can be Euclidean or fractal created from machine tools produced using microreplication and other techniques. The carrier webs are useful for release liners for pressure sensitive adhesives and a number of other industrial and consumer applications.