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:
Oct. 02, 1984
Filed:
Mar. 10, 1983
William T Lawhon, Jr, Lexington, KY (US);
Henry M Grotta, Delaware, OH (US);
International Spike, Inc., Lexington, KY (US);
Abstract
A process for making controlled release fertilizer product containing an increased amount of sustained-release nitrogen includes the step of mixing a partly water soluble thermoplastic binder, and urea-formaldehyde condensate and a pH modifier. The amount of pH modifier should be sufficient to bring the pH of the shaped fertilizer product to the range from about 6 to about 12. The mixture is subjected to such conditions including temperature and pressure so as to produce a shaped fertilizer product. The resulting shaped fertilizer product includes approximately the same amount of sustained-release nitrogen as the urea-formaldehyde condensate in the mixture.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile