Granted Patent
Utility
US 5,870,646 · App. 08/926,480
Apparatus for developing photographic material
Inventor:
Joachim Simon
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Sep 10, 1997
Inventor
Joachim Simon
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.