Granted Patent
Utility
US 5,956,322 · App. 08/825,201
Phantom flow control method and apparatus
Inventor:
Anna Charny
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Mar 27, 1997
Inventor
Anna Charny
Assignee (at issue)
Caldetron 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.