Granted Patent
Utility
US 4,028,804 · App. 05/678,133
Chain saw with throttle control
Inventor:
Walter J. Hammond
Patented Case
View Patent ↗
Granted: Jun 14, 1977
Filed: Apr 19, 1976
Inventor
Walter J. Hammond
Assignee (at issue)
McCulloch Corporation
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.