Duvet cover with open zipper
JP1812771SActive Publication Date: 2025-11-14立岛 律子
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Patent Information
- Application Number
- JP2025011160D
- Authority / Receiving Office
- JP · JP
- Patent Type
- Designs
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2050-05-16
Smart Images

Figure 0001812771000001 
Figure 0001812771000002 
Figure 0001812771000003
Abstract
When using a futon cover with an open zipper, fold the futon cover in half lengthwise, then fold that in half widthwise again. This means that when it is reduced to a quarter of the size of the futon, you can close it with the pair of open zippers on both sides. This prevents the futon from collapsing into a compact size.
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