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:
Aug. 16, 1977
Filed:
Apr. 05, 1976
Applicant:
Inventors:
Kenneth Eugene Fersch, Marysville, OH (US);
Wayne Eugene Stearns, West Mansfield, OH (US);
Assignee:
The O.M. Scott & Sons Company, Marysville, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C05B / ; C05C / ;
U.S. Cl.
CPC ...
71 29 ; 71 6 / ; 71 6 / ; 71 6 / ; 428403 ;
Abstract
A controlled release particulate fertilizer composition containing nitrogen in a form which is slowly released and a water soluble solid additive, such as a phosphorus or potassium nutrient salt, in a form which is quickly released comprising a core of a water soluble nitrogen nutrient source, a coating of sulfur surrounding the core, and a coating surrounding the sulfur coating of an inert water-insoluble material such as wax. The inert coating comprises an inner portion of the inert coating alone and an outer portion containing the salt or other water soluble additive.