Granted Patent
Utility
US 5,255,333 · App. 07/896,918
Opto-electronic transducer arrangement having a lens-type optical coupling
Inventors:
Hans-Ludwig Althaus, Ralf Dietrich, Erich Hufgard, Werner Spaeth
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Jun 11, 1992
Inventors
Hans-Ludwig Althaus
Ralf Dietrich
Erich Hufgard
Werner Spaeth
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.