Granted Patent
Utility
US 6,601,831 · App. 09/859,013
Modular fence system
Inventor:
Ronald D. Erwin
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: May 15, 2001
Inventor
Ronald D. Erwin
Assignee (at issue)
Erwin 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.