Granted Patent
Utility
US 4,298,153 · App. 06/147,439
Interfloor tube aspirator inlet muffler
Inventors:
Wilbur L. Stables, David Pendlebury, William Robert Weiss
Patented Case
View Patent ↗
Granted: Nov 3, 1981
Filed: May 7, 1980
Inventors
Wilbur L. Stables
David Pendlebury
William Robert Weiss
Assignee (at issue)
ALLIED CONSULTING, 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.