Granted Patent
Utility
US 6,277,934 · App. 09/416,956
Organic aluminoxy compound and catalyst for producing polymer
Inventors:
Tsuyoshi Kondoh, Shoji Naganuma, Norio Tomotsu
Patented Case
View Patent ↗
Granted: Aug 21, 2001
Filed: Oct 13, 1999
Inventors
Tsuyoshi Kondoh
Shoji Naganuma
Norio Tomotsu
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.