Granted Patent
Utility
US 6,431,250 · App. 09/851,869
Apparatus and method for windlocking a building opening
Inventors:
Willis Jay Mullet, Mark Hudoba
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: May 9, 2001
Inventors
Willis Jay Mullet
Mark Hudoba
Assignee (at issue)
Wayne-Dalton Corp.
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.