Granted Patent
Utility
US 5,915,476 · App. 08/786,508
Monitoring well
Inventors:
Joel M. Hubbell, James B. Sisson
Patented Case
View Patent ↗
Granted: Jun 29, 1999
Filed: Jan 21, 1997
Inventors
Joel M. Hubbell
James B. Sisson
Assignee (at issue)
Lockheed Martin Idaho Technologies Company
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.