Granted Patent
Utility
US 6,604,761 · App. 09/678,973
Coupling device for two pipes made of composite material based on a thermoplastic
Inventors:
Jean-Paul Debalme, Gerard Gandre
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Oct 5, 2000
Inventors
Jean-Paul Debalme
Gerard Gandre
Assignee (at issue)
Saint-Gobain Vetrotex France S.A.
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.