Granted Patent
Utility
US 5,447,374 · App. 08/176,422
Positioning device for temperature sensor in freeze drying
Inventors:
Douglas S. Fraser, Taylor Thompson
Patented Case
View Patent ↗
Granted: Sep 5, 1995
Filed: Jan 3, 1994
Inventors
Douglas S. Fraser
Taylor Thompson
Assignee (at issue)
FTS Systems, 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.