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:
Sep. 23, 1997
Filed:
Jan. 23, 1996
Applicant:
Inventor:
Charles W Wyckoff, Needham, MA (US);
Assignee:
Brite-Line Technologies, Inc., Canton, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; E01F / ; G02B / ;
U.S. Cl.
CPC ...
427215 ; 427212 ; 427226 ; 4273722 ; 404 10 ; 404 11 ; 404 14 ; 404 16 ; 359541 ;
Abstract
High brightness durable retro-reflecting microspheres for retro-reflection and related uses (and a novel method of forming the same) is provided embodying a retro-reflective vitreous glass microsphere encapsulated in a hardened clear non-vitreous metal-oxide ceramic shell of substantially the same index of fraction as the microsphere.