Granted Patent
Utility
US 4,642,977 · App. 06/793,801
Trash separator for hut harvester
Inventor:
Barry Ramacher
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Nov 1, 1985
Inventor
Barry Ramacher
Assignee (at issue)
Ramacher Manufacturing 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.