Granted Patent
Utility
US 6,043,890 · App. 09/252,230
Arrangement for determining the position of a surgical microscope
Inventors:
Roger Spink, Bernhard Braunecker, Klaus-Peter Zimmer, Thomas Mayer, John Rogers
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Feb 18, 1999
Inventors
Roger Spink
Bernhard Braunecker
Klaus-Peter Zimmer
Thomas Mayer
John Rogers
Assignee (at issue)
Leica Mikroskopie Systeme 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.