Granted Patent
Utility
US 4,643,094 · App. 06/800,773
Printing plate for offset printing
Inventor:
Hakan Holmstrom
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Nov 22, 1985
Inventor
Hakan Holmstrom
Assignee (at issue)
Tetra Pak International AB
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.