Granted Patent
Utility
US 4,568,984 · App. 06/497,509
Method and apparatus for scanning masters
Inventors:
Heinrich Juergensen, Thomas Zelenka
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: May 24, 1983
Inventors
Heinrich Juergensen
Thomas Zelenka
Assignee (at issue)
Dr. Ing. Rudolf Hell 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.