Granted Patent
Utility
US 4,238,274 · App. 05/925,146
Method for avoiding undesirable deposits in crystal growing operations
Inventors:
Tze Yao Chu, Yogesh Jaluria, Robert J. Lavigna, Raymond E. Reusser, George J. Williams
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Jul 17, 1978
Inventors
Tze Yao Chu
Yogesh Jaluria
Robert J. Lavigna
Raymond E. Reusser
George J. Williams
Assignee (at issue)
Western Electric Company, 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.