Granted Patent
Utility
US 5,111,993 · App. 07/550,721
Water sprinkler
Inventor:
Paul Baker
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Jul 10, 1990
Inventor
Paul Baker
Assignee (at issue)
The Quaker Oats Company
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.