Granted Patent
Utility
US 5,156,858 · App. 07/743,214
Apparatus for controlling the molding of a solid product in a mold cavity from molten material which is repeatedly moved within the mold cavity
Inventors:
Peter Allan, Michael J. Bevis
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Aug 9, 1991
Inventors
Peter Allan
Michael J. Bevis
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT 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.