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:
May. 04, 1976
Filed:
Jul. 11, 1974
Applicant:
Inventor:
Mark James Marquisee, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
252451 ; 252 6253 ; 2524 / ; 252448 ; 2524 / ;
Abstract
Described are semipermeable microcapsules which comprise an outer semipermeable polymeric skin encapsulating a silica gel. These microcapsules may be used as chromatographic media or may be modified to contain a homogeneous or heterogeneous catalyst and/or a ferromagnetic material.
Marquisee, Mark. (1976). Semipermeable microcapsules containing a silica gel (U.S. Patent No. 3954678). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3954678
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile