Granted Patent
Utility
US 6,283,019 · App. 09/424,753
Method for engraving printing cylinders
Inventor:
Jurgen Heinrich Fritz Dolves
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Apr 28, 2000
Inventor
Jurgen Heinrich Fritz Dolves
Assignee (at issue)
Heidelberger Druckmaschinen AG
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.