Granted Patent
Utility
US 4,518,344 · App. 06/484,706
Methods and apparatus for maintaining a pressure contact seal between nozzles and cavities of an on-line injection molding machine
Inventors:
Maurice G. Latreille, William A. Tennant
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Apr 13, 1983
Inventors
Maurice G. Latreille
William A. Tennant
Assignee (at issue)
American Can Company
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.