Granted Patent
Utility
US 4,830,607 · App. 07/131,019
Method and apparatus for the sintering and condensation of ceramic compacts
Inventors:
Josef Fischhof, Manfred Hartmann
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Dec 9, 1987
Inventors
Josef Fischhof
Manfred Hartmann
Assignee (at issue)
Leybold 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.