Granted Patent
Utility
US 5,670,249 · App. 08/728,190
Recording sheet and record
Inventor:
Toshihiro Tanuma
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Oct 10, 1996
Inventor
Toshihiro Tanuma
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.