Apparatus and method for making an ear warmer and an ear warmer frame
US7617543B2 · kind B2 · utility
9Cited by
173References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2007 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Dec 28, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S2/11
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ear warmer comprises a set of membranes and a frame. The set of membranes collectively defines an outer perimeter. The set of membranes is attached along the outer perimeter to define an attachment portion. The attachment portion is entirely disposed within an interior of the set of membranes. The frame is disposed within the interior of the set of membranes
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.