Granted Patent
Utility
US 4,352,728 · App. 06/165,786
Solids feeding device and system
Inventors:
Robert J. Gartside, Herman N. Woebcke
Patented Case
View Patent ↗
Granted: Oct 5, 1982
Filed: Jul 3, 1980
Inventors
Robert J. Gartside
Herman N. Woebcke
Assignee (at issue)
Stone & Webster Engineering Corp.
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.