Granted Patent
Utility
US 4,160,455 · App. 05/815,282
Heater for heating fluid in a body cavity
Inventor:
James T. Law
Patented Case
View Patent ↗
Granted: Jul 10, 1979
Filed: Jul 13, 1977
Inventor
James T. Law
Assignee (at issue)
Ferranti Limited
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.