Granted Patent
Utility
US 4,654,980 · App. 06/721,942
Solvent removal using a condensable heat transfer vapor
Inventor:
Dinesh M. Bhat
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Apr 11, 1985
Inventor
Dinesh M. Bhat
Assignee (at issue)
James River 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.