Granted Patent
Utility
US 5,286,187 · App. 07/996,491
Method for molding saturated crystalline polyesters and molding equipment therefor
Inventors:
Hiroji Niimi, Takashi Satake, Kunio Tomita
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Dec 23, 1992
Inventors
Hiroji Niimi
Takashi Satake
Kunio Tomita
Assignee (at issue)
Mitsui Petrochemical 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.