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:
Aug. 24, 1999
Filed:
Sep. 16, 1997
Applicant:
Inventors:
James Patrick Mathers, Woodbury, MN (US);
Kathleen Marie Humpal, Woodbury, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B22D / ; C01F / ;
U.S. Cl.
CPC ...
4271634 ; 404 14 ; 264 15 ; 427204 ; 427205 ; 427215 ; 427219 ; 427242 ;
Abstract
A method of making a ceramic retroreflective element having enhanced strength and increased retained reflectivity. The method of the present invention comprises forming retroreflective elements by the following steps:
Mathers, James. (1999). Method of making retroreflective elements (U.S. Patent No. 5942280). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5942280
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile