Granted Patent
Utility
US 5,454,143 · App. 07/858,495
Doorstop
Inventor:
Charles L. Wigley, Sr.
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: Mar 27, 1992
Inventor
Charles L. Wigley, Sr.
Assignee (at issue)
Common-Sense Industries, 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.