Granted Patent
Utility
US 5,134,264 · App. 07/691,434
Device for the inductive heating of the inside of cylinder liners of reciprocating-piston engines for the purpose of hardening
Inventors:
Dieter Burger, Walter Burbock, Peter Linden
Patented Case
View Patent ↗
Granted: Jul 28, 1992
Filed: Apr 25, 1991
Inventors
Dieter Burger
Walter Burbock
Peter Linden
Assignee (at issue)
MERCEDES-BENZ GROUP 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.