Granted Patent
Utility
US 4,487,229 · App. 06/503,419
System for protecting machine threads
Inventors:
Wilfried Dreyfuss, Thomas E. Remp, Kurt Muller
Patented Case
View Patent ↗
Granted: Dec 11, 1984
Filed: Jun 13, 1983
Inventors
Wilfried Dreyfuss
Thomas E. Remp
Kurt Muller
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.