Methods of and apparatus for coating elongated strand material
CA 2058181 C · Owner: Lochkovic, Gregory A. · Inventors: Lochkovic, Gregory A.; Rotoloni, Francis A.; Andrews, Jack E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
12-, In order to coat successive increments of length of an elongated strand material such as an optical fiber (22) for example, with a marking, material, for example a liquid coating material (40) is circulated through an input section (85) into an inner chamber (71) of a housing (62) and outwardly through an output section (87) to be returned to a reservoir (39). Elongated strand material is advanced through an entry portion into and through the inner chamber wherein it is contacted by the liquid coating material being circulated therethrough. Afterwards each successive, increment of length is advanced through an exit die (73) which causes the liquid coating material to be formed into a …
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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
- Filed December 20, 1991 and granted July 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.