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:
Oct. 06, 1981
Filed:
Apr. 27, 1979
Applicant:
Inventors:
Paul F Bente, III, Landenberg, PA (US);
Ernest H Zerenner, Newark, DE (US);
Raymond D Dandeneau, Wilmington, DE (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2101982 ; 55386 ; 65DI / ;
Abstract
An open tubular or capillary chromatographic column made from drawn silica tubing having an exterior coating for protection from abrasion and moisture and means for holding it in a desired configuration.