Granted Patent
Utility
US 4,519,190 · App. 06/532,942
Inter-trolley latch for draper header
Inventor:
Edward A. Blakeslee
Patented Case
View Patent ↗
Granted: May 28, 1985
Filed: Sep 16, 1983
Inventor
Edward A. Blakeslee
Assignee (at issue)
Sperry Corp.
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.