Granted Patent
Utility
US 5,697,155 · App. 08/341,113
Method of manufacturing a branched pipe by internal high-pressure forming
Inventors:
Henning Bloecker, Pierre Bonny, Thomas Huelsberg, Thoralf Nehls, Ralf Puenjer, Eckhard Reese, Heinz-Ruediger Otte
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: Nov 18, 1994
Inventors
Henning Bloecker
Pierre Bonny
Thomas Huelsberg
Thoralf Nehls
Ralf Puenjer
Eckhard Reese
Heinz-Ruediger Otte
Assignee (at issue)
MERCEDES-BENZ GROUP AG
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.