Granted Patent
Utility
US 5,576,490 · App. 08/315,895
Modular rotary element processor
Inventors:
Peter Gross, Roy F. Carlson
Patented Case
View Patent ↗
Granted: Nov 19, 1996
Filed: Sep 30, 1994
Inventors
Peter Gross
Roy F. Carlson
Assignee (at issue)
ILLINOIS TOOL WORKS 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.