Granted Patent
Utility
US 4,701,969 · App. 06/918,661
Rotary brush sweeper with easily separable debris pan
Inventors:
Robert C. Berfield, Craig A. Seasholtz, Richard M. Fegan
Patented Case
View Patent ↗
Granted: Oct 27, 1987
Filed: Oct 15, 1986
Inventors
Robert C. Berfield
Craig A. Seasholtz
Richard M. Fegan
Assignee (at issue)
SHOP VAC 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.