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. 01, 1979
Filed:
Jan. 28, 1974
Applicant:
Inventor:
Sylvan Eisenberg, San Francisco, CA (US);
Assignee:
Micro Tracers, Inc., San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A23K / ; C09K / ;
U.S. Cl.
CPC ...
252-1 ; 252408 ; 426 74 ; 426 96 ; 426 97 ;
Abstract
A dry homogeneous admixture including a bulk material, a micro-ingredient, and a solid particulate tracer in a preselected ratio to the micro-ingredient, comprising a vehicle of ground iron or other ferromagnetic material that will become magnetized by a magnetic field, but loses its magnetism in the absence of such a field. The vehicle itself serves as the tracer when used with magnetic detection techniques. Additional tracers are provided by coating the vehicle with detectable coatings such as dyes.