Granted Patent
Utility
US 6,006,520 · App. 08/944,774
Pneumatic assisted brake apply system
Inventors:
James William Zehnder, II, Donald L. Parker, Timothy A. Haerr, John Dudley Altevers, Craig A. Osterday, Robert Phillis
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Oct 6, 1997
Inventors
James William Zehnder, II
Donald L. Parker
Timothy A. Haerr
John Dudley Altevers
Craig A. Osterday
Robert Phillis
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.