Granted Patent
Utility
US 4,309,945 · App. 06/042,980
Flexographic printing unit
Inventor:
Thomas E. Marion
Patented Case
View Patent ↗
Granted: Jan 12, 1982
Filed: May 25, 1979
Inventor
Thomas E. Marion
Assignee (at issue)
Maryland Cup Corporation
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.