用于食品保温的袋子，具有加强底部。
专利摘要
保温袋(2)由隔热复合材料制成，折叠形成底部并沿侧边(3)焊接以形成袋体(1)，袋体具有口部(5)，在口部处施加有手柄(7A, 7B)。复合材料限定与袋口相对的折叠成手风琴状的底部，并且手风琴状底部的层状加强元件(15)设置在袋内部。
Original abstractThe thermal bag ( 2 ) is made of thermally insulating composite material folded to form a bottom and welded along lateral borders ( 3 ) to form a body ( 1 ) of the bag with a mouth ( 5 ) at the level of which a handle ( 7 A, 7 B) is applied. The composite material defines a bottom folded in an accordion-like fashion opposite the mouth of the bag, and a laminar stiffening element ( 15 ) of the accordion-like bottom is disposed inside the bag.
专利附图（共 6 张）
法律状态与事件
2017-11-15
Patent granted
2021-05-25
Maintenance fee paid (4th year)
2025-07-28
Maintenance fee reminder mailed
2026-01-12
Patent lapsed for failure to pay maintenance fees
2026-02-03
Lapsed due to nonpayment of maintenance fee (37 CFR 1.362)
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