Granted Patent
Utility
US 4,350,560 · App. 06/298,242
Apparatus for and method of handling crystals from crystal-growing furnaces
Inventors:
Walter Helgeland, Alex Teverovsky, Kenneth H. Kerwin, II, Carl Chartier
Patented Case
View Patent ↗
Granted: Sep 21, 1982
Filed: Aug 7, 1981
Inventors
Walter Helgeland
Alex Teverovsky
Kenneth H. Kerwin, II
Carl Chartier
Assignee (at issue)
Ferrofluidics 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.