Granted Patent
Utility
US 4,526,547 · App. 06/634,835
Writing aid and method of teaching using the writing aid
Inventor:
Chris E. Rusk
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Jul 26, 1984
Inventor
Chris E. Rusk
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.