Method and apparatus for forming high strength splices in optical fibers
CA 2055617 C · Owner: Tynes, Arthur Richard · Inventors: Tynes, Arthur Richard; Mies, Eric William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High strength optical fiber splices are obtained using an inert flowing gas (82) to remove frit and discoloration produced during a fusing process. The fibers (50) being spliced are protected from chemical and particulate contamination by preventing such contaminants from coming into contact with the exposed fiber ends as can occur when the fiber end is placed into a solvent to soften the jacket prior to stripping. Finally a post fusion heat treating step is added after the fibers have been spliced to remove any surface damage that may have been produced.
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 June 13, 1990 and granted March 25, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2012.
- 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.