Granted Patent
Utility
US 4,459,021 · App. 05/957,767
Memory registration system
Inventor:
Henry Blazek
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Nov 3, 1978
Inventor
Henry Blazek
Assignee (at issue)
PerkinElmer, 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.