Granted Patent
Utility
US 5,856,667 · App. 08/776,838
Apparatus and method for detection and demodulation of an intensity-modulated radiation field
Inventors:
Thomas Spirig, Peter Seitz
Patented Case
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Granted: Jan 5, 1999
Filed: Feb 13, 1997
Inventors
Thomas Spirig
Peter Seitz
Assignee (at issue)
Leica 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.