Granted Patent
Utility
US 6,317,989 · App. 09/612,935
Chain saw nose sprocket
Inventors:
Karl Forsberg, Karl Olov Pettersson, Gabriel Carro
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Jul 10, 2000
Inventors
Karl Forsberg
Karl Olov Pettersson
Gabriel Carro
Assignee (at issue)
KAPMAN AB
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.