Portfolio and method of making the same
US5975578A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 1998 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Jun 16, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S412/902
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A portfolio includes a rectangular piece of a canvas material having an outer peripheral edge, a rectangular peripheral piece of a vinyl material having an inner peripheral edge that slightly overlaps the outer peripheral edge of the canvas material, with an inner surface of the inner peripheral edge and an outer surface of the outer peripheral edge being heat sealed to each other with a predetermined stitching pattern, a first cardboard rigidifying member positioned to an inner surface of the canvas material corresponding to a top panel of the desk folder, a second cardboard rigidifying member positioned to an inner surface of the canvas material adjacent to the first rigidifying member, corresponding to a bottom panel of the desk folder, with a spacing between the first and second rigidifying members which defines a narrow binding edge which connects together side edges of the top and bottom panels, a vinyl backing member positioned over the first and second rigidifying members being heat sealed to the vinyl material so as to retain the rigidifying members between the backing member and the canvas material, and decorative stitching applied to an outer periphery of the portfolio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.