Granted Patent
Utility
US 6,152,248 · App. 09/155,496
Mobile agricultural machine
Inventors:
Shigehiro Hidaka, Daigo Yokoyama
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Sep 23, 1998
Inventors
Shigehiro Hidaka
Daigo Yokoyama
Assignee (at issue)
Yanmar Agricultural Equipment, Lts.
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.