Granted Patent
Utility
US 5,674,947 · App. 08/514,730
Method for preparing modified resins and their applications
Inventors:
Tetsuya Oishi, Kazuo Sugazaki, Jin Suzuki
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Aug 14, 1995
Inventors
Tetsuya Oishi
Kazuo Sugazaki
Jin Suzuki
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.