Spark plug printing machine
CA 2122086 A1 · Owner: Perry, John R. · Inventors: Allen, Brian K.; Perry, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Known spark plug printing machines have a silk screen from which ink is transferred to a spark plug insulator. In the present invention the machine has two silk screens with different color inks mounted side-by-side and facing down. The spark plug insulators are rotatably mounted in a vertical orientation on a turntable. A print transfer pad located beneath the screens is rotatable from a first position where it is horizontal and contacts the screens to a second vertical position. In the second position the pad contacts one of the insulators and is displaced along its length to roll the insulator along the pad through more than 360° so that ink from both screens is transferred to the …
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 April 25, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2016.
- 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.