Granted Patent
Utility
US 5,227,109 · App. 07/818,046
Method for producing multicomponent polymer fibers
Inventors:
Harry S. Allen, Daniel McMenamin, Hubert J. Booth
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Jan 8, 1992
Inventors
Harry S. Allen
Daniel McMenamin
Hubert J. Booth
Assignee (at issue)
Wellman 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.