Fibrous structures comprising regions having different solid additive levels
US11358182B2 · kind B2 · utility
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3References
20Claims
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Key dates
| Filing date | Aug 16, 2019 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Aug 16, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/005
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Fibrous structures containing solid additives, and more particularly, fibrous structures containing two or more regions that comprise different average weight % levels of solid additives and methods for making same are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.