Button forming assembly
CA 1285337 C · Owner: Minnesota Mining And Manufacturing Company · Inventors: Pyle, Godfrey J.; Solie, O.B.; Faulkner, Gerald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A button forming assembly adapted for use in an upholstered cushion of the type comprising a backing a, flexible cover overlying the backing and a layer of, compressible padding material between the backing and the cover. The button forming assembly comprises a button forming member including a head portion in the shape of a button to be formed, and an attachment portion having a cross sectional area smaller than the cross sectional area of the head portion projecting from one side of the head portion. The cover is secured around the attachment portion with a part of the cover positioned smoothly around the head portion, and attachment means are engaged between the attachment portion and …
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 25, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 2008.
- 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.