Granted Patent
Utility
US 6,378,769 · App. 09/370,635
Pass through delivery device
Inventor:
Steven Frederick Wolgamot
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Aug 6, 1999
Inventor
Steven Frederick Wolgamot
Assignee (at issue)
ASSA ABLOY DOOR GROUP 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.