Granted Patent
Utility
US 6,378,593 · App. 09/687,377
Access panel for operating an in-wall curtain drive system and method of using same
Inventors:
Willis Jay Mullet, James F. Baudanza
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Oct 13, 2000
Inventors
Willis Jay Mullet
James F. Baudanza
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.