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. 01, 1994
Filed:
May. 09, 1991
Applicant:
Inventor:
Mark Weidner, Seattle, WA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
1591471 ; 159 22 ; 159 271 ; 159 44 ; 202160 ; 202206 ; 202237 ; 202259 ; 203-2 ; 203D / ; 203D / ; 422100 ; 422101 ;
Abstract
The concentrate holding lower portion of a sample and concentrate holding vessel has a jacket for shielding such concentrate holding portion from heat sufficient to volatilize appreciable solvent therefrom when the vessel is subjected to sufficient heat for effecting evaporative concentration of solution in such vessel.