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:
Dec. 27, 1988
Filed:
Oct. 20, 1987
Applicant:
Inventors:
Hernan Cortes, Midland, MI (US);
Curtis D Pfeiffer, Midland, MI (US);
Bruce E Richter, Midland, MI (US);
Timothy S Stevens, Midland, MI (US);
Assignee:
Lee Scientific, Inc., Salt Lake City, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2101982 ; 2105101 ; 55386 ;
Abstract
Porous ceramic plugs are cast in place in chromatographic columns in order to provide supports for chromatographic beds in liquid chromatography devices and restrictors in supercritical fluid chromatographic devices. The supports are cast in place by fusing a silicate containing solution, such as one containing potassium silicate, which has been drawn into the outlet end of the column.
Cortes, Hernan. (1988). Chromatography columns with cast porous plugs and methods of fabricating (U.S. Patent No. 4793920). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4793920
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile