Granted Patent
Utility
US 4,139,224 · App. 05/815,187
Hose clamp for thin wall, high pressure fire hose
Inventor:
Paul A. Leach
Patented Case
View Patent ↗
Granted: Feb 13, 1979
Filed: Jul 13, 1977
Inventor
Paul A. Leach
Assignee (at issue)
Jaffrey Fire Protection Company, 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.