Granted Patent
Utility
US 6,161,609 · App. 09/200,295
Flow control apparatus
Inventor:
Young Kil Ahn
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Nov 25, 1998
Inventor
Young Kil Ahn
Assignee (at issue)
CARRIER CORPORATION
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.