Granted Patent
Utility
US 4,488,171 · App. 06/444,114
Image reproduction
Inventors:
Peter C. Pugsley, Leonard A. Preston
Patented Case
View Patent ↗
Granted: Dec 11, 1984
Filed: Nov 24, 1982
Inventors
Peter C. Pugsley
Leonard A. Preston
Assignee (at issue)
Crosfield Electronics 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.