Granted Patent
Utility
US 5,022,845 · App. 07/343,453
Segmented mandrel for forming composite articles
Inventors:
Sandra M. Charlson, Steven J. Kotula, Michael R. McCloy
Patented Case
View Patent ↗
Granted: Jun 11, 1991
Filed: Apr 25, 1989
Inventors
Sandra M. Charlson
Steven J. Kotula
Michael R. McCloy
Assignee (at issue)
HERCULES LLC
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.