Granted Patent
Utility
US 4,826,411 · App. 06/722,593
Air pump vane assembly
Inventor:
Gerald A. Gaeth
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: Apr 12, 1985
Inventor
Gerald A. Gaeth
Assignee (at issue)
General Motors LLC
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.