Granted Patent
Utility
US 5,357,731 · App. 07/891,656
Packaging machine
Inventors:
Graham T Conway, Jeffrey Ryan Bloomfield, Oliver F. Chastney
Patented Case
View Patent ↗
Granted: Oct 25, 1994
Filed: May 29, 1992
Inventors
Graham T Conway
Jeffrey Ryan Bloomfield
Oliver F. Chastney
Assignee (at issue)
Datum Appropriate Technology Limited
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.