Granted Patent
Utility
US 4,606,550 · App. 06/549,223
Collapsible stroller
Inventor:
Richard E. Cone
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: Nov 7, 1983
Inventor
Richard E. Cone
Assignee (at issue)
Spalding & Evenflo Companies, Inc.
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.