Granted Patent
Utility
US 6,274,075 · App. 09/327,641
Five layer injection molding apparatus having four position valve member actuating mechanism
Inventors:
Jobst U. Gellert, Denis Babin
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Jun 8, 1999
Inventors
Jobst U. Gellert
Denis Babin
Assignee (at issue)
Mold-Masters Limited
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.