Granted Patent
Utility
US 5,953,136 · App. 08/905,768
Method for producing photographic copies from photographic originals
Inventors:
Walter Kraft, Peter Zolliker
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Aug 4, 1997
Inventors
Walter Kraft
Peter Zolliker
Assignee (at issue)
Gretag Imaging 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.