Granted Patent
Utility
US 5,355,567 · App. 07/993,189
Process for preparing engineered fiber blend
Inventor:
Richard Holliday
Patented Case
View Patent ↗
Granted: Oct 18, 1994
Filed: Dec 18, 1992
Inventor
Richard Holliday
Assignee (at issue)
Hoechst Celanese 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.