Granted Patent
Utility
US 6,096,814 · App. 09/147,638
Flexible polypropylene resin compositions, films or sheets made therefrom, and surface-protective films or sheets made therefrom
Inventors:
Satoshi Tamura, Yutaka Azuma
Patented Case
View Patent ↗
Granted: Aug 1, 2000
Filed: Feb 5, 1999
Inventors
Satoshi Tamura
Yutaka Azuma
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.