Granted Patent
Utility
US 6,836,061 · App. 10/298,069
Shadow mask for color cathode ray tube having a specific hole structure
Inventor:
Sun-Hun Kim
Patented Case
View Patent ↗
Granted: Dec 28, 2004
Filed: Nov 18, 2002
Inventor
Sun-Hun Kim
Assignee (at issue)
LG. Philips Displays Korea 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.