Granted Patent
Utility
US 6,287,501 · App. 09/293,861
Method for manufacturing crosslinked overmolded plumbing tubes
Inventor:
William W. Rowley
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Apr 16, 1999
Inventor
William W. Rowley
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.