Three ring binder page for holding compact discs
US5620271A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Sep 13, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/0444
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A loose leaf page for selectively storing four compact discs (CDs) on each side of the page, or for storing two CDs and associated printed and graphic information on each side of the page. A flexible, plastic, two-sided, loose leaf page includes four CD storage pockets per side of the page, and includes a hole pattern that facilitates releasably mounting the page in a standard cover-size 1-inch, 1 1/2-inch or 3 inch three-ring binder notebook, certain embodiments also facilitating mounting of the page in a three-ring Chicago-posted binder. In order to prevent interference between two CDs that reside closest to the binder rings when a user manually leaves through binder pages, the page includes a six-hole pattern, or a three-hole/three-notch pattern, that is configured to ensure that a vertical pivot line, or binder edge, on the page being turned moves past the vertical leading edge of the three rings, and then moves backward under the three rings. The CD storage page includes two outer transparent polypropylene layers and an inner layer that is constructed of soft nonwoven polypropylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.