Granted Patent
Utility
US 4,459,254 · App. 06/104,140
Transport system for hot melt
Inventor:
Bretislav P. Zuber
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Dec 17, 1979
Inventor
Bretislav P. Zuber
Assignee (at issue)
Nortel Networks 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.