Granted Patent
Utility
US 4,672,330 · App. 05/492,335
Phase-lock loop systems
Inventors:
John T. Floyd, Christopher D. Huggett, Michael A. Jones, John R. Woods
Patented Case
View Patent ↗
Granted: Jun 9, 1987
Filed: Jul 23, 1974
Inventors
John T. Floyd
Christopher D. Huggett
Michael A. Jones
John R. Woods
Assignee (at issue)
The Marconi Company Limited
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.