Granted Patent
Utility
US 5,806,544 · App. 08/799,679
Carbon dioxide jet spray disk cleaning system
Inventor:
Thomas J. Kosic
Patented Case
View Patent ↗
Granted: Sep 15, 1998
Filed: Feb 11, 1997
Inventor
Thomas J. Kosic
Assignee (at issue)
Eco-Snow Systems, 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.