Method of applying a coating of a suspension and/or solution to the inner wall of a tubular lamp
CA 1067764 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Kuijer, William L.; Wennekes, Paulus J.; Sygall, Peter I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of applying a longitudinal slot in a reflecting and/or luminescent coating in a tubular lamp by means of a nozzle which travels along the longitudinal axis of the lamp envelope, with spraying channels a, plurality of spraying channels being so directed that the jets of suspension and/or solution coming from these, channels, which land on the portion of the envelop immediately adjacent to the slot to be formed are at, such an angle with the lamp envelope that the slot to be formed remains free from splashes.
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 December 11, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 11, 1996.
- 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.