Granted Patent
Utility
US 4,565,640 · App. 06/685,808
Aqueous compositions containing cyanuric acid
Inventor:
Chris PARKS
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: Dec 24, 1984
Inventor
Chris PARKS
Assignee (at issue)
MERCK & CO., INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.