Mouthguard and method of making
US6584978B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2002 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | May 24, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2208/12
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present invention relates to a bilayer mouthguard fabricated from a high impact thermoplastic polymer blend having the ability to absorb, attenuate, and dissipate shock forces and a method of fabricating a mouthguard. The present invention utilizes a polymer blend comprising ethylene vinyl acetate and a thermoplastic urethane. The bilayer mouthguard has a U-shape base and is defined by inner lingual and outer labial walls, a channel for receiving the upper jaw and teeth, cushion pads laying within the U-shape base, and in certain designs a transition support portion extending forward from the posterior cushion pads connecting with an anterior impact brace that extends into the outer labial wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.