Granted Patent
Utility
US 5,298,821 · App. 07/662,615
Battery-powered tool
Inventor:
Timothy P. Michel
Patented Case
View Patent ↗
Granted: Mar 29, 1994
Filed: Feb 28, 1991
Inventor
Timothy P. Michel
Assignee (at issue)
S-B Power Tool 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.