Granted Patent
Utility
US 4,265,383 · App. 06/033,882
Slat assembly
Inventor:
Douglas J. Ferguson
Patented Case
View Patent ↗
Granted: May 5, 1981
Filed: Apr 27, 1979
Inventor
Douglas J. Ferguson
Assignee (at issue)
Fourstar Group 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.