Granted Patent
Utility
US 5,873,809 · App. 08/737,230
Packaging material making machine
Inventors:
Mark Kempster, Timothy Edward Lawrence Panther
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Mar 7, 1997
Inventors
Mark Kempster
Timothy Edward Lawrence Panther
Assignee (at issue)
Easypack Limited
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.