Granted Patent
Utility
US 4,552,308 · App. 06/199,469
Turbine engine variable geometry device
Inventors:
Casimir Rogo, Herman N. Lenz
Patented Case
View Patent ↗
Granted: Nov 12, 1985
Filed: Oct 22, 1980
Inventors
Casimir Rogo
Herman N. Lenz
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.