Granted Patent
Utility
US 5,454,991 · App. 08/316,706
Vent system for liquid molding
Inventor:
James K. Brew
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: Sep 30, 1994
Inventor
James K. Brew
Assignee (at issue)
GenCorp, 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.