Granted Patent
Utility
US 5,867,309 · App. 08/718,451
Stereomicroscope
Inventors:
Roger Spink, Bernhard Braunecker, John Rogers, Klaus-Peter Zimmer
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Nov 27, 1996
Inventors
Roger Spink
Bernhard Braunecker
John Rogers
Klaus-Peter Zimmer
Assignee (at issue)
LEICA GEOSYSTEMS 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.