Granted Patent
Utility
US 6,771,390 · App. 09/402,843
Method for modifying the size of line elements
Inventor:
Ernst-Rudolf Gottfried Weidlich
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Apr 18, 2000
Inventor
Ernst-Rudolf Gottfried Weidlich
Assignee (at issue)
Hell Gravure Systems GmbH
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.