Granted Patent
Utility
US 4,636,069 · App. 06/672,597
Method for reading deformation images on electrophotographic media
Inventor:
N. Balasubramanian
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Nov 15, 1984
Inventor
N. Balasubramanian
Assignee (at issue)
Matrix Instruments Inc.
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.