Detecting defects in plastic and similar surfaces
CA 2277234 A1 · Owner: Cormier, Gerald J. · Inventors: Held, Theodore D. Iii; Cormier, Gerald J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A "highlighter" liquid for detecting cosmetic defects in non-metallic surfaces, particularly those intended for high quality automotive finishes comprises organic, substances each molecule of which contains at least one continuously chemically, bonded chain or ring of atoms in which there are at least two carbon atoms and at least, two oxygen, nitrogen, sulfur and phosphorus heteroatoms, the carbon atoms and heteroatoms being arranged in such an order along the chain or ring that (i) each heteroatom, is bonded to at least one carbon atom and (ii) the chain does not include more than three, consecutive continuously chemically bonded carbon atoms Particularly suitable materials include …
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 July 8, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2021.
- 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.