Granted Patent
Utility
US 4,570,233 · App. 06/394,229
Modular digital image generator
Inventors:
Johnson K. Yan, Judit K. Florence
Patented Case
View Patent ↗
Granted: Feb 11, 1986
Filed: Jul 1, 1982
Inventors
Johnson K. Yan
Judit K. Florence
Assignee (at issue)
The Singer 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.