Granted Patent
Utility
US 6,149,751 · App. 08/856,662
Low pressure single facer
Inventor:
Carl R. Marschke
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: May 15, 1997
Inventor
Carl R. Marschke
Assignee (at issue)
Marquip, LLC
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.