← Back to Patent Explorer
EP0035933A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Cartridge for an optical disk

Assignee: OFFERTA DI LICENZA AL PUBBLICO
•
Filing: 1981-03-02
•
Granted: —
•
Expires: 2001-03-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A cassette for storing and handling optical disks without touching them, including in particular video disks recorded on both sides, the cassette comprising a plate contained in a plastic envelope. The plate comprises a first cavity in which the disk to be protected is positioned. An additional annular cavity is provided in the bottom surface of the plate. The cover of the envelope comprises a cavity of shape matching that of the additional annular cavity such that the recorded areas of both sides of the disk are protected. Additional conical surfaces bearing one on the other are provided in the cover and plate around the edge of the first cavity. Means for locking the plate in the envelope are also provided.

Inventors

  • 👤 Raymond Llabres

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-26 05:45
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/03; G11B23/0328

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US3481656A Cited
FR2238211A1 Cited
FR2363162A2 Cited
FR2418518A2 Cited
FR2374723A1 Cited
FR2418519A1 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag