Premises cable with glass fiber reinforcement and method of making thereof
CA 2446184 A1 · Owner: Priest, James R. · Inventors: Priest, James R.; Lehman, Richard N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A premises cable (10) having a plurality of inorganic fibers (14) for protecting and suspending a plurality of optical fibers (12) within a polymer jacket (16). The inorganic fibers, preferably glass fibers do not generate , smoke or fire and thus offer an improvement over traditional polyaramid fibers used as reinforcement materials in premises cables. A sizing composition is applied to the inorganic fibers to prevent ribbonization of the inorganic fibers, thereby preventing attenuation of the optical fibers caused by such a ribbonization and also allowing a uniform distribution of glass fibers around the optical fibers to further protect the optical fibers.
Read the whole patent
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 May 28, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 28, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2024.
- 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.