Granted Patent
Utility
US 5,971,179 · App. 08/776,833
Non-refilling devices
Inventors:
Paul Michael Christmas, Andrew Blair, Robert R. Bell
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Feb 18, 1997
Inventors
Paul Michael Christmas
Andrew Blair
Robert R. Bell
Assignee (at issue)
Daniel Montgomery & Son 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.