Granted Patent
Utility
US 6,225,768 · App. 09/372,900
Automatic door safety system with multiple safety modes
Inventors:
James COOKSON, Bryon Hibbetts
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: Aug 12, 1999
Inventors
James COOKSON
Bryon Hibbetts
Assignee (at issue)
The Cookson Company
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.