Granted Patent
Utility
US 6,503,585 · App. 09/419,520
Hollow-chamber lightweight component
Inventors:
Joachim Wagenblast, Boris Koch, Hubert Goldbach
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Oct 18, 1999
Inventors
Joachim Wagenblast
Boris Koch
Hubert Goldbach
Assignee (at issue)
Bayer Aktiengesellschaft
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.