Granted Patent
Utility
US 4,537,289 · App. 06/389,739
Dust boot for a disc-brake actuating cylinder-and-piston unit
Inventors:
Hubertus VonGrunberg, Jonathan Rowell, Frederick C. Corey
Patented Case
View Patent ↗
Granted: Aug 27, 1985
Filed: Jun 18, 1982
Inventors
Hubertus VonGrunberg
Jonathan Rowell
Frederick C. Corey
Assignee (at issue)
International Telephone and Telegraph Corporation
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.