Granted Patent
Utility
US 4,512,172 · App. 06/359,654
Method of forming flanged containers
Inventors:
James B. Abbott, Ernest O. Kohn, Christopher J. Berry, Mark N. Slade
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Mar 5, 1982
Inventors
James B. Abbott
Ernest O. Kohn
Christopher J. Berry
Mark N. Slade
Assignee (at issue)
Metal Box p.l.c.
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.