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:
Feb. 03, 1987
Filed:
May. 07, 1985
Applicant:
Inventors:
Hugh E Ramsden, Scotch Plains, NJ (US);
Joseph M Patterson, New Britain, PA (US);
Assignee:
J. T. Baker Chemical Company, Phillipsburg, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502407 ; 2101982 ; 2105021 ; 55 67 ; 55386 ; 556438 ;
Abstract
The reaction product of silica gel or controlled pore glass and carboalkoxyalkyl silanes are suitable for use as packing in solid phase extraction columns for cleanup of urine samples for analysis of cannabinoids.