Granted Patent
Utility
US 4,137,696 · App. 05/757,724
Header suspension and lift means
Inventor:
Bryant F. Webb
Patented Case
View Patent ↗
Granted: Feb 6, 1979
Filed: Jan 7, 1977
Inventor
Bryant F. Webb
Assignee (at issue)
Sperry Rand Corporation
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.