Granted Patent
Utility
US 4,331,452 · App. 06/175,174
Apparatus for crystal shaping
Inventors:
Donald R. Causey, Owen Fredericks
Patented Case
View Patent ↗
Granted: May 25, 1982
Filed: Aug 4, 1980
Inventors
Donald R. Causey
Owen Fredericks
Assignee (at issue)
Fairchild Camera & Instrument Corp.
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.