Granted Patent
Utility
US 4,325,643 · App. 06/167,503
Food-mixing apparatus comprising a driving unit and a separable arm
Inventors:
William H. Scott, Mohamed K. Wagdy
Patented Case
View Patent ↗
Granted: Apr 20, 1982
Filed: Jul 11, 1980
Inventors
William H. Scott
Mohamed K. Wagdy
Assignee (at issue)
Sunbeam Corporation Limited
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.