Granted Patent
Utility
US 5,249,424 · App. 07/894,777
Active magnetic regenerator method and apparatus
Inventors:
Anthony J. DeGregoria, Carl Bruno Zimm, Dennis J. Janda, Richard A. Lubasz, Alexander G. Jastrab, Joseph W. Johnson, Evan McNeil Ludeman
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Jun 5, 1992
Inventors
Anthony J. DeGregoria
Carl Bruno Zimm
Dennis J. Janda
Richard A. Lubasz
Alexander G. Jastrab
Joseph W. Johnson
Evan McNeil Ludeman
Assignee (at issue)
Astronautics Corporation of America
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.