Hollow upholsterer's button
CA 1052017 A · Owner: International B.F. Goodrich-Europe B.V. · Inventors: Eskes, Hendrik J.K.; Beernaerts, Andre M.H.J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hollow upholsterer's button comprising an upper part and a lower part. The parts are each provided with an upright circumferential rim, with the aid of which the parts are in communication with one another. A cushion mattress or suchlike, upholstered article is provided with a lining and hollow upholsterer's buttons respectively. Air passages are provided in at least in the lower part of said upholsterer's button the air passages being also found in the upright circumferential rim thereof.
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 April 3, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 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.