Granted Patent
Utility
US 5,635,429 · App. 08/682,216
Method of making a substrate of a ceramic material
Inventors:
Wilhelm A. Grogen, Marcellinus J. Kraan, Paulus F. Van Hal, Gijsbertus De With
Patented Case
View Patent ↗
Granted: Jun 3, 1997
Filed: Jul 17, 1996
Inventors
Wilhelm A. Grogen
Marcellinus J. Kraan
Paulus F. Van Hal
Gijsbertus De With
Assignee (at issue)
U.S. Philips Corporation
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.