Granted Patent
Utility
US 5,597,453 · App. 07/962,256
Apparatus and method for vapor compression distillation device
Inventor:
Stephan B. Sears
Patented Case
View Patent ↗
Granted: Jan 28, 1997
Filed: Oct 16, 1992
Inventor
Stephan B. Sears
Assignee (at issue)
Superstill Technology, 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.