Granted Patent
Utility
US 4,511,310 · App. 06/585,745
Ceiling fan blade isolation
Inventor:
Richard A. Pearce
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: Mar 2, 1984
Inventor
Richard A. Pearce
Assignee (at issue)
Robbins & Myers, 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.