Granted Patent
Utility
US 4,703,175 · App. 06/767,037
Fiber-optic sensor with two different wavelengths of light traveling together through the sensor head
Inventors:
Michael M. Salour, Gerhard Schöner, James H. Bechtel, Martin Kull
Patented Case
View Patent ↗
Granted: Oct 27, 1987
Filed: Aug 19, 1985
Inventors
Michael M. Salour
Gerhard Schöner
James H. Bechtel
Martin Kull
Assignee (at issue)
Tacan Corporation
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.