Granted Patent
Utility
US 4,662,901 · App. 06/802,794
Recovery of dibutyltin difluoride from a hot, waste gas stream
Inventor:
Clem S. McKown
Patented Case
View Patent ↗
Granted: May 5, 1987
Filed: Nov 27, 1985
Inventor
Clem S. McKown
Assignee (at issue)
M&T Chemicals, 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.