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:
Apr. 10, 1979
Filed:
May. 15, 1978
Applicant:
Inventors:
Paul C Hydes, London, GB;
Michael J Cleare, London, GB;
Assignee:
Johnson, Matthey & Co., Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
424-3 ; 424 75 ;
Abstract
This specification describes a complex of osmium tetroxide and a compound having a heterocyclic ring containing one or two tertiary nitrogen atoms. The compound may be an aromatic tertiary amine and the tertiary nitrogen atom may be the sole heterocyclic atom in the heterocyclic ring. The complexes described are suitable for fixing and staining cells and may be used in the preparation of biological specimens for examination by electron microscopy.