Granted Patent
Utility
US 6,626,043 · App. 09/494,417
Fluid diffusion resistant glass-encased fiber optic sensor
Inventors:
Timothy J. Bailey, Mark R. Fernald, Alan D. Kersey, Trevor MacDougall, Martin A. Putnam
Patented Case
View Patent ↗
Granted: Sep 30, 2003
Filed: Jan 31, 2000
Inventors
Timothy J. Bailey
Mark R. Fernald
Alan D. Kersey
Trevor MacDougall
Martin A. Putnam
Assignee (at issue)
Weatherford/Lamb, 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.