Granted Patent
Utility
US 6,248,281 · App. 09/308,131
Compression apparatus for molding, injection compression molding machine, and injection compression molding method using the compression device
Inventors:
Tomokazu Abe, Tsuneo Matsui
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: May 28, 1999
Inventors
Tomokazu Abe
Tsuneo Matsui
Assignee (at issue)
Idemitsu Petrochemical Co., Ltd.
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.