Granted Patent
Utility
US 5,261,597 · App. 08/026,032
Temperature responsive 3-way line valve with shape memory alloy actuator
Inventors:
Maier Perlman, James M. Bell, Richard L. Martin, Colin A. McGugan
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Mar 4, 1993
Inventors
Maier Perlman
James M. Bell
Richard L. Martin
Colin A. McGugan
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.