Plastic substrate for thermal ink jet printer
CA 1319562 C · Owner: Hewlett-Packard Company · Inventors: Hanson, Eric; Childers, Winthrop D.; Schantz, Chris
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A substrate for the print head of an ink Jet printer includes a plastic base, a metallization layer overlying the plastic base, and a dielectric structure overlying the metallization layer. A thin film resistor is deposited over the substrate as, required. Acceptable materials include polyimide plastic for the base, copper or nickel for the metallization layer, and a bilayer construction of silicon dioxide overlying chromium or titanium for the dielectric structure.
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
- Granted June 29, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 29, 2010.
- 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.