Granted Patent
Utility
US 4,917,383 · App. 07/421,776
Action target
Inventors:
Robert L. Brown, Robert D. Shilen, Robert F. Rosnak
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: Oct 16, 1989
Inventors
Robert L. Brown
Robert D. Shilen
Robert F. Rosnak
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.