Granted Patent
Utility
US 6,722,089 · App. 10/152,196
Concealed structural mullion
Inventor:
Emory Budzinski
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: May 21, 2002
Inventor
Emory Budzinski
Assignee (at issue)
Peachtree Doors, 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.