Granted Patent
Utility
US 5,636,562 · App. 08/515,239
Spring brake actuator with release tool requiring limited axial space
Inventors:
Graydon J. Choinski, Richard F. Zarybnicky, Sr., Ronald S. Plantan
Patented Case
View Patent ↗
Granted: Jun 10, 1997
Filed: Aug 15, 1995
Inventors
Graydon J. Choinski
Richard F. Zarybnicky, Sr.
Ronald S. Plantan
Assignee (at issue)
INDIAN HEAD 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.