Granted Patent
Utility
US 4,137,939 · App. 05/840,971
Hose reel cart
Inventor:
Ho Chow
Patented Case
View Patent ↗
Granted: Feb 6, 1979
Filed: Oct 11, 1977
Inventor
Ho Chow
Assignee (at issue)
Melnor 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.