Granted Patent
Utility
US 6,029,342 · App. 08/925,556
Apparatus kit and method for roller chain assembly
Inventors:
David C. Armenoff, David Frey
Patented Case
View Patent ↗
Granted: Feb 29, 2000
Filed: Sep 8, 1997
Inventors
David C. Armenoff
David Frey
Assignee (at issue)
AMSTED INDUSTRIES INCORPORATED
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.