Granted Patent
Utility
US 4,604,933 · App. 06/546,468
Carbide-tipped circular saw for metal cutting at low surface speeds
Inventors:
Ernest G. Lesher, Cornelius E. Mieras
Patented Case
View Patent ↗
Granted: Aug 12, 1986
Filed: Oct 28, 1983
Inventors
Ernest G. Lesher
Cornelius E. Mieras
Assignee (at issue)
NORTH AMERICAN PRODUCTS GROUP, LLC
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.