Granted Patent
Utility
US 5,091,900 · App. 06/458,426
Multi-layer optical media for an optical recording and reproducing system in which non-ablative data recording is provided in a manner such that high sensitivity is achieved with an in-contact overcoat
Inventor:
Edward V. LaBudde
Patented Case
View Patent ↗
Granted: Feb 25, 1992
Filed: Jan 17, 1983
Inventor
Edward V. LaBudde
Assignee (at issue)
Unisys 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.