Granted Patent
Utility
US 4,408,982 · App. 06/337,115
Process for firing a furnace
Inventors:
Hisashi Kobayashi, John Erling Anderson
Patented Case
View Patent ↗
Granted: Oct 11, 1983
Filed: Jan 5, 1982
Inventors
Hisashi Kobayashi
John Erling Anderson
Assignee (at issue)
Union Carbide 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.