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:
Dec. 21, 1976
Filed:
Dec. 23, 1974
Applicant:
Inventor:
Charles W Salisbury, Risingsun, OH (US);
Assignee:
Owens-Illinois, Inc., Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
316 17 ; 29 2513 ; 313220 ; 316-4 ;
Abstract
Stainless steel discs with a Brinell hardness of about 150 to 240 provide excellent invisible spacers for maintaining proper gas chamber gaps in electro-optical display devices. These spacers approximately about 8 to 20 mils in diameter and about 3 to 7 mils thick improve spacing uniformity in the viewing area and minimize firing site or cell wipe-out.