Granted Patent
Utility
US 5,385,774 · App. 07/464,133
Roof material for motor vehicles
Inventors:
Johannes Cramer, Erwin Winterberg, Hans Nockemann
Patented Case
View Patent ↗
Granted: Jan 31, 1995
Filed: Jan 16, 1990
Inventors
Johannes Cramer
Erwin Winterberg
Hans Nockemann
Assignee (at issue)
Gebr. Happich GmbH
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.