Granted Patent
Utility
US 6,457,717 · App. 09/668,898
Method for constructing a fluid barrier
Inventor:
Donald P. Mayeaux
Patented Case
View Patent ↗
Granted: Oct 1, 2002
Filed: Sep 22, 2000
Inventor
Donald P. Mayeaux
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.