Granted Patent
Utility
US 5,961,437 · App. 08/925,099
Multi-layer waste containment barrier
Inventors:
Ann Marie Smith, Bradley M. Gardner, David F. Nickelson
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Sep 8, 1997
Inventors
Ann Marie Smith
Bradley M. Gardner
David F. Nickelson
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.