Fracturable textile filaments for producing yarns having free protruding ends and process
CA 1135915 A · Owner: Eastman Kodak Company · Inventors: Casey, James O. Jr.; Gregory, Dale R.; Phillips, Bobby M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Multifilament yarns comprising continuous multifilaments each having at least one body section and having extending therefrom along its length at least one wing-member the body section, comprising about 25 to 95% of the total mass of the filament and the wing member comprising about 5 to 75% of the total mass of filament, the filament being further characterized by a wing-body interaction defined by, where the ratio of the width of said fiber to the wing thickness (Lt/Dmin) is ? 30. Also disclosed are specific yarns and processes for producing the filaments and yarns. The spun-like character of the fractured yarns of this invention is provided by the wing members extending from and along …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 23, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 1999.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.