Granted Patent
Utility
US 6,784,249 · App. 09/835,914
Rubbery polymer
Inventor:
Hung Dang Ngoc
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Apr 16, 2001
Inventor
Hung Dang Ngoc
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.