Granted Patent
Utility
US 4,457,166 · App. 06/393,790
Engine intake air flow measuring apparatus
Inventor:
Hiroshi Kobayashi
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Jun 30, 1982
Inventor
Hiroshi Kobayashi
Assignee (at issue)
Nissan Motor 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.