Granted Patent
Utility
US 4,898,332 · App. 07/335,848
Adjustable rotary stream sprinkler unit
Inventors:
Edwin J. Hunter, Loren W. Scott
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Apr 10, 1989
Inventors
Edwin J. Hunter
Loren W. Scott
Assignee (at issue)
Edwin J. Hunter
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.