Granted Patent
Utility
US 5,294,472 · App. 07/939,599
Oblique web multiple surface panels fabricated of aromatic polycarbonates
Inventors:
Norbert Arnold, Wolfgang Wiebel
Patented Case
View Patent ↗
Granted: Mar 15, 1994
Filed: Sep 2, 1992
Inventors
Norbert Arnold
Wolfgang Wiebel
Assignee (at issue)
Degussa 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.