Granted Patent
Utility
US 6,006,975 · App. 09/210,453
Pneumatically operated nail driver
Inventor:
Yoshinori Ishizawa
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Dec 14, 1998
Inventor
Yoshinori Ishizawa
Assignee (at issue)
Hitachi Koki 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.