Granted Patent
Utility
US 4,246,507 · App. 05/946,667
Removable brush mechanism for a homopolar generator
Inventors:
William F. Weldon, James Weldon
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Sep 28, 1978
Inventors
William F. Weldon
James Weldon
Assignee (at issue)
Astec Industries, Inc.
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.