Granted Patent
Utility
US 4,677,263 · App. 06/756,819
Air spring position switch
Inventors:
James M. Hamilton, Bruce Burness
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Jul 18, 1985
Inventors
James M. Hamilton
Bruce Burness
Assignee (at issue)
C & K Venture Income I-Coast
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.