Granted Patent
Utility
US 4,908,802 · App. 06/676,621
Apparatus for fiber optic seismic exploration system
Inventors:
Donald W. Harvey, Bing-Fai Fung, Donald J. Bacha
Patented Case
View Patent ↗
Granted: Mar 13, 1990
Filed: Nov 30, 1984
Inventors
Donald W. Harvey
Bing-Fai Fung
Donald J. Bacha
Assignee (at issue)
Geosource, Inc.
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.