Granted Patent
Utility
US 6,172,270 · App. 09/147,432
Process for producing halogenated hydrocarbons
Inventor:
Shin Tatematsu
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Dec 23, 1998
Inventor
Shin Tatematsu
Assignee (at issue)
ASAHI GLASS CO., LTD.
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.