Granted Patent
Utility
US 4,375,078 · App. 06/247,962
Data transfer control circuit
Inventor:
Donald E. Thoma
Patented Case
View Patent ↗
Granted: Feb 22, 1983
Filed: Mar 26, 1981
Inventor
Donald E. Thoma
Assignee (at issue)
GTE Automatic Electric Labs 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.