Granted Patent
Utility
US 5,041,337 · App. 07/466,482
Preceramic compositions and ceramic products
Inventor:
Leonard M. Niebylski
Patented Case
View Patent ↗
Granted: Aug 20, 1991
Filed: Jan 17, 1990
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.