Granted Patent
Utility
US 5,083,382 · App. 07/627,244
Adjustable flights with dams for rotary dryers
Inventor:
David F. Brashears
Patented Case
View Patent ↗
Granted: Jan 28, 1992
Filed: Dec 11, 1990
Inventor
David F. Brashears
Assignee (at issue)
GENCOR INDUSTRIES, 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.