Granted Patent
Utility
US 4,898,534 · App. 07/304,292
Apparatus and process for firing ceramics
Inventor:
Robert L. Huntt
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Jan 31, 1989
Inventor
Robert L. Huntt
Assignee (at issue)
Alpha Industries, Inc.
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.