Granted Patent
Utility
US 4,505,184 · App. 06/454,798
Air distributor for sequentially controlling air operated apparatus
Inventor:
James McDonald
Patented Case
View Patent ↗
Granted: Mar 19, 1985
Filed: Dec 30, 1982
Inventor
James McDonald
Assignee (at issue)
AT&T Technologies Incorporated
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.