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:
Mar. 17, 2020
Filed:
Nov. 05, 2018
Applicant:
Nutriag Ltd., Toronto, CA;
Inventors:
Martin David Bloomberg, Toronto, CA;
Mark Stewart Houston-McMillan, Toronto, CA;
Assignee:
Nutriag Ltd., Toronto, CA;
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/80 (2006.01); A01N 65/00 (2009.01); C05G 3/00 (2020.01); A01N 65/03 (2009.01); A01N 65/08 (2009.01);
U.S. Cl.
CPC ...
G01N 21/80 (2013.01); A01N 65/00 (2013.01); A01N 65/03 (2013.01); A01N 65/08 (2013.01); C05G 3/00 (2013.01);
Abstract
This invention discloses a new class of pH indicators suitable for use in agricultural compounds. The class comprises naturally occurring substances which are extracts from grape skins, cabbage and lecithin. Safety concerns are now causing regulatory bodies to prohibit use of chemical pH indicators in compounds which are used for crops and animals. The naturally occurring compounds of this invention satisfy these concerns of the regulators and function as well as chemical indicators of the prior art.