Granted Patent
Utility
US 5,206,927 · App. 07/836,956
Cassette and cassette block for light waveguides
Inventors:
Lothar Finzel, Thomas Ruckgaber, Winfried Lieber
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Feb 19, 1992
Inventors
Lothar Finzel
Thomas Ruckgaber
Winfried Lieber
Assignee (at issue)
Siemens Aktiengesellschaft
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.