Granted Patent
Utility
US 5,800,577 · App. 08/895,954
Polishing composition for chemical mechanical polishing
Inventor:
Takanori Kido
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Jul 17, 1997
Inventor
Takanori Kido
Assignee (at issue)
Showa Denko K.K.
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.