Granted Patent
Utility
US 5,806,579 · App. 08/896,469
Venetian type blinds having opposed lift cords
Inventor:
Ren Judkins
Patented Case
View Patent ↗
Granted: Sep 15, 1998
Filed: Jul 18, 1997
Inventor
Ren Judkins
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.