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:
Apr. 25, 1978
Filed:
Feb. 22, 1977
Lasse Kuparinen, Sulfeld, DT;
Koh-I-Noor Rapidograph, Inc., Bloomsbury, NJ (US);
Abstract
Capillary writing pen of the type embodying a sleeve, an ink reservoir supported within the sleeve and a tubular writing point extending from the reservoir and through the bottom of the sleeve. Particularly, a sealing gasket supported within the cover for the sleeve, so as to seal both an expansion chamber leading to the ink reservoir and the tubular writing end or tip. The sealing gasket is characterized by its axial extensibility in the form of a bellows and, thus, accommodates tubular writing points of varying diameters and lengths.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile