Method of stretching an upper about the vamp of a last
CA 1104769 A · Owner: International Shoe Machine Corporation · Inventors: Lindsey, William C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for stretching an upper (104) mounted on a last (102) about the vamp of the last while the last (102) is supported bottomdown. The last (102) has a throat (110) between the tops of its toe and cone portions that is bridged by the upper (104) with the upper (104) being spaced from the throat (110) above the throat (110). The upper margin (112) is gripped toewardly of the throat (110) by toe pincers (12) and heelwardly of the throat (110) by ball pincers (18). The ball pincers (18) are then moved towards the toe pincers (12) to cause the upper (104) above the throat (110) to buckle into the throat (110) and bear against the throat (110) after which the last (102) is raised to effect …
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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 July 14, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 1998.
- 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.