Granted Patent
Utility
US 6,735,905 · App. 10/097,668
Ratcheting winding cone
Inventor:
Willis D. Miller
Patented Case
View Patent ↗
Granted: May 18, 2004
Filed: Mar 13, 2002
Inventor
Willis D. Miller
Assignee (at issue)
C.H.I. Overhead Doors, 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.