Audio-video disc repair apparatus
CA 2265375 A1 · Owner: Akob, Juliet · Inventors: Akob, Juliet
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An upwardly facing rotating abrasive wheel assembly has a foam pad topped by abrasive paper. The abrasive wheel assembly is removably mounted in a motor-driven cup. The abrasive wheel assembly can be changed to change the grade of abrasive paper or to renew the abrasive paper. The ROM disc to be repaired is downwardly facing and is rotatably mounted on a ROM disc carrier. The ROM disc carrier is lowered until the ROM disc is in face-to-face abrading relationship with the upwardly facing abrasive wheel assembly. The interengagement rotates the ROM disc so that even abrasion of the ROM disc protective layer is achieved. After a short run with the coarse abrasive, a fine abrasive is …
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 16, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 16, 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.