Granted Patent
Utility
US 4,635,245 · App. 06/829,411
Frasable optical read/write data storage disc
Inventor:
James L. Smith
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Feb 13, 1986
Inventor
James L. Smith
Assignee (at issue)
LTV Aerospace and Defense Company
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.