Granted Patent
Utility
US 4,941,063 · App. 07/341,771
Telephone lines overvoltage protection apparatus
Inventors:
Thomas McCartney, Melvin A. Lace
Patented Case
View Patent ↗
Granted: Jul 10, 1990
Filed: Apr 20, 1989
Inventors
Thomas McCartney
Melvin A. Lace
Assignee (at issue)
Oneac 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.