Granted Patent
Utility
US 4,046,706 · App. 05/674,159
Contact lens cleaning composition
Inventor:
Joseph Z. Krezanoski
Patented Case
View Patent ↗
Granted: Sep 6, 1977
Filed: Apr 6, 1976
Inventor
Joseph Z. Krezanoski
Assignee (at issue)
Flow Pharmaceuticals, 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.