Method of film coating articles
CA 1071518 A · Owner: Exxon Research And Engineering Company · Inventors: Verbunt, Piet L. H.; Busby, William J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The surface of an object is covered with a plastics film by a process in which a preformed solid and tacky plastics film is brought into contact with the surface, the film is stretched over the surface and substantially all the film made to adhere substantially permanently to the object surface through its own tackiness and without the use of an adhesive. Thus, the tacky plastics film may be held in a frame and the object pushed through the film. Alternatively the object may be conveyed on a moving belt to a position adjacent to a heated tacky plastics film and the film brought into contact with the object. The plastics film may for example be an ethylene-vinyl acetate copolymer.
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 February 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 1997.
- 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.