Granted Patent
Utility
US 5,013,609 · App. 07/363,484
Ceramic products derived from polycarbosilanes and boroxines
Inventor:
Leonard M. Niebylski
Patented Case
View Patent ↗
Granted: May 7, 1991
Filed: Jun 8, 1989
Inventor
Leonard M. Niebylski
Assignee (at issue)
Ethyl 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.