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:
Feb. 09, 1999
Filed:
Aug. 22, 1991
Applicant:
Inventors:
Donald M Yenni, Jr, Round Rock, TX (US);
Robert L Lambert, Jr, Georgetown, TX (US);
Clyde D Calhoun, Stillwater, MN (US);
David C Koskenmaki, St. Paul, MN (US);
David J Lundin, Woodbury, MN (US);
Assignee:
Minnesota Mining & Manufacturing Co., St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
442376 ; 428903 ;
Abstract
A thermoformable add-on EMI shielding sheet comprising a carrier material selected from polymeric films and fibrous webs having the capability of becoming porous when thermoformed, having a metal mat at least partially embedded therein, comprising a plurality of fine, randomly-oriented metal fibers, the carrier material having a softening temperature lower than the highest temperature reached during the thermoforming process.