Granted Patent
Utility
US 4,138,688 · App. 05/864,066
Method and apparatus for automatically controlling the inclination of patterns in ink jet printers
Inventors:
Roderick S. Heard, James D. Hill, David W. Phillips
Patented Case
View Patent ↗
Granted: Feb 6, 1979
Filed: Dec 23, 1977
Inventors
Roderick S. Heard
James D. Hill
David W. Phillips
Assignee (at issue)
International Business Machines 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.