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. 23, 2007
Filed:
Sep. 09, 2003
Larry D. Humlicek, Ham Lake, MN (US);
Daniel H. Carlson, Arden Hills, MN (US);
James N. Dobbs, Woodbury, MN (US);
Samuel Hunter, Legal Representative, Mendota Heights, MN (US);
Thelma Hunter, Legal Representative, Mendota Heights, MN (US);
John T. Strand, Stillwater, MN (US);
Gregory F. King, Minneapolis, MN (US);
David W. Kuhns, Minneapolis, MN (US);
John S. Huizinga, Dellwood, MN (US);
William V. Dower, Austin, TX (US);
Larry D. Humlicek, Ham Lake, MN (US);
Daniel H. Carlson, Arden Hills, MN (US);
James N. Dobbs, Woodbury, MN (US);
Samuel Hunter, legal representative, Mendota Heights, MN (US);
Thelma Hunter, legal representative, Mendota Heights, MN (US);
John T. Strand, Stillwater, MN (US);
Gregory F. King, Minneapolis, MN (US);
David W. Kuhns, Minneapolis, MN (US);
John S. Huizinga, Dellwood, MN (US);
William V. Dower, Austin, TX (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An apparatus for casting a patterned surface on both sides of a web. The apparatus includes a first patterned roll; a second pattered roll; and a means for rotating the first and second patterned rolls such that their patterns are transferred to opposite sides of the web while it is in continuous motion. During this process, their patterns are maintained in continuous registration to within at least 100 microns, and preferably at least 20 microns.