The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 1982
Filed:
Oct. 06, 1980
Erik Moe, Huntington Beach, CA (US);
Storage Technology Corporation, Louisville, CO (US);
Abstract
An information storage device for recording by means of a radiant energy beam such as a laser in which a disc-shaped base member, one or more regions of recording medium and one or more disc-shaped protective layers (or 'windows') are arranged to form a layered structure or sandwich. The innermost portions of the protective layer(s) are fastened to the corresponding portions of the base member and an annular support ring radially spaced from the outermost edge of the base member is fastened to the outer edge of the protective layer(s). A circumferential gap is thereby provided between the annular support and base member to permit expansion and contraction of the base member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile