Granted Patent
Utility
US 4,577,467 · App. 06/666,327
Frost diffusion system for refrigeration apparatus
Inventors:
Fayez F. Ibrahim, Edward E. Bowman
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: Oct 30, 1984
Inventors
Fayez F. Ibrahim
Edward E. Bowman
Assignee (at issue)
Tyler Refrigeration Corporation
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.