IP Library Granted Patent US 4,246,064
Granted Patent Utility
US 4,246,064 · App. 06/054,124

Double crucible crystal growing process

Inventors: Thomas J. Dewees, John Stewart Fangman, Wen-Bin Lin
Patented Case View Patent ↗
Granted: Jan 20, 1981 Filed: Jul 2, 1979
Inventors
Thomas J. Dewees
John Stewart Fangman
Wen-Bin Lin
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.

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Quick Facts
Patent No.
US 4,246,064
App. No.
06/054,124
Filed
1979-07-02
Granted
1981-01-20
Kind
A