Method and apparatus for on-line coating of drawn optical fibres
CA 1261632 A · Owner: Standard Telephones And Cables Public Limited Company · Inventors: Mchugh, Terence M.; Lamb, John G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
On line coating of optical fibre adopts silicon nitride or oxynitride to provide an hermetic seal using chemical vapour disposition. Non-contacting gas seals at the top and bottom of the reaction chamber are so constructed that fibre vibration is avoided, surface flaws are minimised and the coating minimises stress corrosion.
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
- Granted September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.