Granted Patent
Utility
US 4,166,353 · App. 05/808,333
Two-way rake
Inventors:
Harold Keith Garrison, Martin E. Pruitt
Patented Case
View Patent ↗
Granted: Sep 4, 1979
Filed: Jun 20, 1977
Inventors
Harold Keith Garrison
Martin E. Pruitt
Assignee (at issue)
Hesston 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.