Laser reflecting flip-flop printing on transfer paper for screen printing
CA 2422849 A1 · Owner: Su, Chang-Chi · Inventors: Su, Chang-Chi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for laser reflecting flip-flop printing on transfer papers for screen printing is, disclosed. A substrate consisting of a base paper a glue, a transparent tape, a transparent resin, a hydrophilic paint and a metal layer is manufactured by a vapor deposition, method. A flip-flop ink having a predetermined pattern as printed on the substrate. The, metal layer which is not covered by the ink is etched by an alkaline solution. The alkaline, solution is neutralized by an acid solution. The substrate is washed and then dried so that, the transfer printing papers having a flip-flop effect are obtained.
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 March 18, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 2025.
- 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.