Granted Patent
Utility
US 4,848,434 · App. 07/169,456
Vertical blind with movable auxiliary rod support
Inventors:
John E. Morris, Ronald G. Darner
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Mar 17, 1988
Inventors
John E. Morris
Ronald G. Darner
Assignee (at issue)
Graber 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.