Granted Patent
Utility
US 4,580,833 · App. 06/672,284
Safety lock for a folding high chair
Inventor:
David G. Waples
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Nov 16, 1984
Inventor
David G. Waples
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.