Granted Patent
Utility
US 5,747,556 · App. 08/001,993
Opacified pearlescent multilayer louver for verticle blinds
Inventor:
Paul R. Schwaegerle
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Jan 8, 1993
Inventor
Paul R. Schwaegerle
Assignee (at issue)
The Geon Company
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.