Granted Patent
Utility
US 6,267,169 · App. 09/513,457
Vertically folding wall partitions
Inventor:
J. McDonald
Patented Case
View Patent ↗
Granted: Jul 31, 2001
Filed: Mar 3, 2000
Inventor
J. McDonald
Assignee (at issue)
Railtech 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.