Granted Patent
Utility
US 5,526,998 · App. 08/261,197
Take-up system for photographic material in strip-form
Inventors:
Rudolf Ackermann, Hanspeter Scharer
Patented Case
View Patent ↗
Granted: Jun 18, 1996
Filed: Jun 16, 1994
Inventors
Rudolf Ackermann
Hanspeter Scharer
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.