Granted Patent
Utility
US 6,281,513 · App. 09/327,468
Pattern forming method
Inventor:
Hiroshi Takenaka
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Jun 8, 1999
Inventor
Hiroshi Takenaka
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.