Granted Patent
Utility
US 5,416,169 · App. 08/147,582
Polypropylene having a high melt-tensile strength, a process for producing the same and a molded product from the same
Inventors:
Jun Saito, Shunji Kawazoe, Shingo Kikukawa
Patented Case
View Patent ↗
Granted: May 16, 1995
Filed: Nov 5, 1993
Inventors
Jun Saito
Shunji Kawazoe
Shingo Kikukawa
Assignee (at issue)
Chisso 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.