Granted Patent
Utility
US 4,378,339 · App. 06/045,658
Ammonium thiosulfate products and methods of making the same
Inventors:
Max R. Brinkman, Harold E. Ingraham, William Guy Robertson
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Jun 5, 1979
Inventors
Max R. Brinkman
Harold E. Ingraham
William Guy Robertson
Assignee (at issue)
Heico Corp.
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.