Granted Patent
Utility
US 4,726,440 · App. 07/047,717
Unitized frame for a self-propelled lawn mower
Inventors:
Igor Kamlukin, Edward Freier, Jr., Donald G. Penkoske
Patented Case
View Patent ↗
Granted: Feb 23, 1988
Filed: May 7, 1987
Inventors
Igor Kamlukin
Edward Freier, Jr.
Donald G. Penkoske
Assignee (at issue)
Simplicity Manufacturing, Inc.
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.