Granted Patent
Utility
US 5,224,263 · App. 07/722,656
Gentle package extraction tool and method
Inventor:
William Hamburgen
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Jun 28, 1991
Inventor
William Hamburgen
Assignee (at issue)
Digital Equipment Corporation
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.