Granted Patent
Utility
US 6,772,817 · App. 10/104,552
Adjustable window blind cord stopper
Inventors:
John W. Lai, Eric Lai
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Mar 22, 2002
Inventors
John W. Lai
Eric Lai
Assignee (at issue)
Tony Lai
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.