Granted Patent
Utility
US 6,740,356 · App. 09/983,785
Process for the production of a bituminous sealing sheet
Inventors:
Pierre Etienne Bindschedler, Hervé Fellmann, Remi Perrin
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Oct 25, 2001
Inventors
Pierre Etienne Bindschedler
Hervé Fellmann
Remi Perrin
Assignee (at issue)
SOPREMA
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.