Granted Patent
Utility
US 5,100,183 · App. 07/701,356
Pipe coupling
Inventors:
Robert P. Montesi, Gerald L. Anderson, Phillip E. Frair
Patented Case
View Patent ↗
Granted: Mar 31, 1992
Filed: May 10, 1991
Inventors
Robert P. Montesi
Gerald L. Anderson
Phillip E. Frair
Assignee (at issue)
Dresser Industries, 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.