Granted Patent
Utility
US 6,443,209 · App. 09/710,515
Roll up door
Inventor:
William Hurst
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Nov 10, 2000
Inventor
William Hurst
Assignee (at issue)
Morgan Co., Ltd.
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.