Granted Patent
Utility
US 5,642,896 · App. 08/705,787
Locking pins for movable subframe of tractor-trailers
Inventors:
Phillippi R. Pierce, Scott Dilling, John E. Ramsey
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Aug 30, 1996
Inventors
Phillippi R. Pierce
Scott Dilling
John E. Ramsey
Assignee (at issue)
The Boler Company
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.