Granted Patent
Utility
US 5,603,141 · App. 08/508,590
Interchangeable doorstop
Inventor:
Dale C. Gledhill
Patented Case
View Patent ↗
Granted: Feb 18, 1997
Filed: Jul 28, 1995
Inventor
Dale C. Gledhill
Assignee (at issue)
Dynatec International, 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.