Small, circular disc for the attachment of papers to a flat surface via push pins
US8895128B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 5, 2012 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | May 17, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/219
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention is an improved corkboard consisting of a small, circular, moveable and removable tack landing pad which is designed to adhere to a flat surface such as a wall or computer by an adhesive strip or to a metal surface like a refrigerator or thing cabinet via a magnetic strip. This landing pad is designed to receive papers of various sizes, shapes, and stock through puncture with a standard push pin tack without damaging walls. The landing pad consists of two components—(1) an outer donut-shaped shell that is sealed at its base and is contoured inward to a narrowing angle at its tack receiving face and (2) an inner foam core. The outer shell operates to both enclose and compress the foam core. This core compression affords the foam greater tack gripping ability as well as enhanced durability by quickly regaining its original shape upon tack removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.