Granted Patent
Utility
US 4,256,801 · App. 06/103,421
Carbon fiber/flame-resistant organic fiber sheet as a friction material
Inventor:
Philip A. Chuluda
Patented Case
View Patent ↗
Granted: Mar 17, 1981
Filed: Dec 14, 1979
Inventor
Philip A. Chuluda
Assignee (at issue)
Raybestos-Manhattan, Inc.
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.