Granted Patent
Utility
US 6,644,372 · App. 09/815,403
Cordless blind
Inventor:
Ren Judkins
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Mar 22, 2001
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.