Fiber optic cable
CA 2255175 A1 · Owner: Wagman, Richard S. · Inventors: Wagman, Richard S.; Logan, Eric R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fiber optic cable (10) having a core tube (14) with a stack of optical fiber ribbons (12) therein a jacket (20), and strength sections (30). Jacket (20) includes a non-uniform profile with close profile sections (22) and extended profile sections (26). Strength sections (30) comprise extended profile sections (26) dielectric strength, rods (32), and ripcords (34) disposed between the strength rods. When it is desired to prepare fiber optic cable (10) for a cable pulling operation, portions of extended profile sections (26) are removed thereby exposing strength rods (32) and grip surfaces (22a) for receiving a pulling-grip (40). The compact size, flexibility, and light-weight construction …
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 December 3, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 3, 2020.
- 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.