Granted Patent
Utility
US 5,092,004 · App. 07/514,927
Convertible infant restraint device
Inventors:
Richard E. Cone, Donald L. Gerken
Patented Case
View Patent ↗
Granted: Mar 3, 1992
Filed: Apr 26, 1990
Inventors
Richard E. Cone
Donald L. Gerken
Assignee (at issue)
Cosco, 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.