Granted Patent
Utility
US 6,349,887 · App. 09/428,049
Liquid delivery system
Inventor:
Sung Gyu Pyo
Patented Case
View Patent ↗
Granted: Feb 26, 2002
Filed: Oct 27, 1999
Inventor
Sung Gyu Pyo
Assignee (at issue)
Hyundai Electronics Industries Co. Ltd.
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.