Granted Patent
Utility
US 4,358,926 · App. 06/173,832
Turbine engine with shroud cooling means
Inventor:
Raymond Smith
Patented Case
View Patent ↗
Granted: Nov 16, 1982
Filed: Jul 30, 1980
Inventor
Raymond Smith
Assignee (at issue)
Teledyne Industries, 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.