Granted Patent
Utility
US 4,631,442 · App. 06/653,753
Temperature compensated electron gun system
Inventors:
Hans Reule, Hartmut Ganzle
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Sep 21, 1984
Inventors
Hans Reule
Hartmut Ganzle
Assignee (at issue)
International Standard Electric 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.