Granted Patent
Utility
US 4,290,744 · App. 06/118,381
Apparatus for runnerless injection-compression molding thermosetting materials
Inventors:
W. Andrew Dannels, Robert W. Bainbridge
Patented Case
View Patent ↗
Granted: Sep 22, 1981
Filed: Feb 5, 1980
Inventors
W. Andrew Dannels
Robert W. Bainbridge
Assignee (at issue)
Hooker Chemicals & Plastics Corporation
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.