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. 27, 1977
Filed:
Aug. 16, 1976
Applicant:
Inventors:
Johan J Bogaard, Eindhoven, NL;
Gerrit-Jan Korteling, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
220 / ; 65105 ; 65109 ; 3134 / ;
Abstract
An envelope for an oscilloscope tube is formed by simultaneously rotating and heating a glass tube and upsetting the heated tube, to form a cylindrical section having uniform thickness and varying diameter. The thus formed envelope portion is then pressed into a shape having a rectangular cross-section, without changing the circumference, in order to maintain the thickness of the envelope.
Bogaard, Johan. (1977). Method of manufacturing a bulb for a cathode-ray tube, and bulb obtained (U.S. Patent No. 4050601). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4050601
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile