Granted Patent
Utility
US 5,149,389 · App. 07/512,544
Laminated metal sheet
Inventors:
Peter J. Heyes, Nicholas J. Middleton, Alison M. Brown
Patented Case
View Patent ↗
Granted: Sep 22, 1992
Filed: Apr 18, 1990
Inventors
Peter J. Heyes
Nicholas J. Middleton
Alison M. Brown
Assignee (at issue)
CMB Foodcan plc
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.