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:
Jan. 09, 1990
Filed:
Oct. 13, 1988
Applicant:
Inventor:
Robert L Stevens, South Harpswell, ME (US);
Assignee:
Microscale Organic Laboratory Corporation, Newcastle, NH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
422245 ; 210515 ; 210518 ; 210774 ;
Abstract
Small scale recrystallization apparatus is described using a container tube and a plastic plug with the end of the plug and a constriction in the tube mismating in a precisely controlled ellipticity of one so as to allow passage of solution while blocking formed crystals.