Granted Patent
Utility
US 5,564,102 · App. 08/387,848
Glass melting treatment method
Inventors:
Hiroshi Igarashi, Hiroaki Kobayashi, Kazunari Noguchi
Patented Case
View Patent ↗
Granted: Oct 8, 1996
Filed: Feb 23, 1995
Inventors
Hiroshi Igarashi
Hiroaki Kobayashi
Kazunari Noguchi
Assignee (at issue)
Doryokuro Kakunenryo Kaihatsu Jigyodan
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.