Granted Patent
Utility
US 4,302,981 · App. 06/129,771
Longitudinal drive mechanisms
Inventor:
William G. Wayman
Patented Case
View Patent ↗
Granted: Dec 1, 1981
Filed: Mar 12, 1980
Inventor
William G. Wayman
Assignee (at issue)
Crosfield Electronics Limited
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.