Granted Patent
Utility
US 5,072,871 · App. 07/543,967
Method of making hollow articles
Inventors:
Donald J. Moracz, Roch J. Shipley
Patented Case
View Patent ↗
Granted: Dec 17, 1991
Filed: Jun 27, 1990
Inventors
Donald J. Moracz
Roch J. Shipley
Assignee (at issue)
Compressor Components Textron 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.