Granted Patent
Utility
US 4,878,346 · App. 07/077,615
Tab-aligned replaceable cartridge for master cylinder
Inventors:
Glenn S. Metzelfeld, James A. V. Buckely, Donald D. Brown
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Jul 24, 1987
Inventors
Glenn S. Metzelfeld
James A. V. Buckely
Donald D. Brown
Assignee (at issue)
Hayes Industrial Brake, 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.