Optical fiber rare earth ion upconversion laser system
CA 2129343 C · Owner: Scientific-Atlanta, Inc. · Inventors: Grubb, Stephen G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and apparatus for upconverting laser sources and amplifiers that use solid state components throughout and, achieve such operation with a continuous or quasi-continuous single band infrared pumping source using successive energy transfers between the pumping radiation and activator in the host of the lasant upconversion material under ordinary operating conditions.
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 February 8, 1993 and granted April 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2015.
- 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.