Granted Patent
Utility
US 4,770,348 · App. 06/463,306
Dispenser assembly for semi-liquid spreader
Inventor:
David M. Rieke
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Feb 2, 1983
Inventor
David M. Rieke
Assignee (at issue)
New Idea Corporation
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.