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:
May. 21, 2002
Filed:
Aug. 21, 2000
Applicant:
Inventors:
Bert T. Chien, Minneapolis, MN (US);
Stephen A. Ezzell, Woodbury, MN (US);
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 7/310 ; G02F 1/1335 ; B01D 7/164 ;
U.S. Cl.
CPC ...
C08G 7/310 ; G02F 1/1335 ; B01D 7/164 ;
Abstract
An element of a gigahertz electronic device is provided comprising a polyimide selected to have an imide equivalent weight of 375 or greater. The polyimide preferably has a dielectric loss at 12.8 GHz of 0.009 or less and a Tg of 260° C. or greater. Such elements include circuit substrates and antennas.
Chien, Bert. (2002). Polyimides for high-frequency applications (U.S. Patent No. 6392004). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6392004
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile