Granted Patent
Utility
US 4,422,991 · App. 06/350,968
Method of making hose construction
Inventor:
Alfred Phillips
Patented Case
View Patent ↗
Granted: Dec 27, 1983
Filed: Feb 22, 1982
Inventor
Alfred Phillips
Assignee (at issue)
DayCo Holdings, LP
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.