Granted Patent
Utility
US 5,810,093 · App. 08/725,537
Multi-purpose landscaping device for use with a hand-held rotary power tool
Inventor:
Herman S. Howard
Patented Case
View Patent ↗
Granted: Sep 22, 1998
Filed: Oct 3, 1996
Inventor
Herman S. Howard
Assignee (at issue)
Tympany Medical Limited
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.