Granted Patent
Utility
US 4,977,802 · App. 07/391,084
Self aligning guides for circular saws
Inventor:
Eberhard Kirbach
Patented Case
View Patent ↗
Granted: Dec 18, 1990
Filed: Aug 9, 1989
Inventor
Eberhard Kirbach
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.