Granted Patent
Utility
US 5,844,347 · App. 08/704,209
Saw device and its manufacturing method
Inventors:
Ryoichi Takayama, Keizaburo Kuramasu, Toshio Sugawa
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Aug 29, 1996
Inventors
Ryoichi Takayama
Keizaburo Kuramasu
Toshio Sugawa
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.