Granted Patent
Utility
US 4,555,296 · App. 06/669,509
Universal hot air nozzle and seal bar with adjustable cam
Inventors:
John E. Burtch, James A. Hill
Patented Case
View Patent ↗
Granted: Nov 26, 1985
Filed: Nov 8, 1984
Inventors
John E. Burtch
James A. Hill
Assignee (at issue)
Owens-Illinois 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.