Granted Patent
Utility
US 4,945,807 · App. 07/237,415
Method and apparatus for processing potentially explosive and sensitive materials for forming longitudinally perforated extrudate strands
Inventors:
Bernard A. Loomans, James E. Kowalczyk, Jerry W. Jones
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Aug 29, 1988
Inventors
Bernard A. Loomans
James E. Kowalczyk
Jerry W. Jones
Assignee (at issue)
APV Chemical Machinery 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.