Granted Patent
Utility
US 4,552,071 · App. 06/388,551
Two-piece despin obturator
Inventors:
Brian J. Horais, Joseph S. Kocur
Patented Case
View Patent ↗
Granted: Nov 12, 1985
Filed: Jun 15, 1982
Inventors
Brian J. Horais
Joseph S. Kocur
Assignee (at issue)
UNITED TECHNOLOGIES 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.