Granted Patent
Utility
US 5,597,111 · App. 08/374,613
Corrugated thermoplastic blank for a container
Inventors:
Malcolm R. Mackinnon, Ronald Grobler
Patented Case
View Patent ↗
Granted: Jan 28, 1997
Filed: May 20, 1995
Inventors
Malcolm R. Mackinnon
Ronald Grobler
Assignee (at issue)
Korpak 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.