Granted Patent
Utility
US 5,248,711 · App. 07/312,016
Toughened resin systems for composite applications
Inventors:
Robert A. Buyny, Karen A. Olesen
Patented Case
View Patent ↗
Granted: Sep 28, 1993
Filed: Feb 16, 1989
Inventors
Robert A. Buyny
Karen A. Olesen
Assignee (at issue)
Hexcel 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.