Granted Patent
Utility
US 5,955,162 · App. 08/697,076
Calcium alumina cement lined pipe
Inventors:
C. Gilmer Loving, Steven Farkas
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Aug 19, 1996
Inventors
C. Gilmer Loving
Steven Farkas
Assignee (at issue)
AMSTED INDUSTRIES INCORPORATED
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.