Aluminum mesh with interlaced hollow and solid ribs
CA 2208104 C · Owner: Lai, Ching-Ming · Inventors: Lai, Ching-Ming
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an aluminum mesh with interlaced hollow and solid ribs. The hollow ribs thereof define large open spaces of the aluminum mesh and the solid ribs thereof further define samll open spaces within each large open space, providing the aluminum mesh with changeful patterns formed from the interlaced hollow and the solid ribs in only one single stretching operation. The aluminum mesh with interlaced hollow and solid ribs has the advantages of easy to stretch, dense meshes, and changeful patterns as provided by an aluminum mesh with only solid ribs and the advantages of higher shearing and bending strength as provided by an aluminum mesh with only hollow ribs.
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 16, 1997 and granted August 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 16, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 16, 2019.
- 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.