Granted Patent
Utility
US 6,151,812 · App. 09/183,478
Bucket assembly with an improved lip
Inventor:
Robert S. Bierwith
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Oct 29, 1998
Inventor
Robert S. Bierwith
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.