Granted Patent
Utility
US 4,874,563 · App. 06/940,234
Process for preparing tows from composite fiber blends
Inventors:
Paul E. McMahon, Tai-Shung Chung, Lincoln Ying
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Dec 5, 1986
Inventors
Paul E. McMahon
Tai-Shung Chung
Lincoln Ying
Assignee (at issue)
BASF Structural Materials, 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.