Granted Patent
Utility
US 5,437,920 · App. 08/178,126
Soft asbestos-free sealing material
Inventors:
Gerhard Bauer, Fritz E. Wolfshofer
Patented Case
View Patent ↗
Granted: Aug 1, 1995
Filed: Jan 6, 1994
Inventors
Gerhard Bauer
Fritz E. Wolfshofer
Assignee (at issue)
Frenzelit-Werke GmbH & Co., K.G.
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.