Granted Patent
Utility
US 4,510,642 · App. 06/563,074
Combination bowling lane stripper and duster
Inventors:
Donald E. Ingermann, Ronald L. Smith, Jimmie L. Knoll, Stephen F. Caffrey, Endre Barsi, Joseph C. Dechant
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: Dec 19, 1983
Inventors
Donald E. Ingermann
Ronald L. Smith
Jimmie L. Knoll
Stephen F. Caffrey
Endre Barsi
Joseph C. Dechant
Assignee (at issue)
Century International Corporation
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.