Bulky yarn spindle for spinning wheels
CA 1103531 A · Owner: Schilder, Nell · Inventors: Schilder, Nell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Spinning wheels, equipped with spindle for a flyer and bobbin, are provided with a second and detachable spindle which can be fitted into and located in the outside orifice of the spindle holding the flyer and the bobbin, to allow the spinning of yarn of larger size or irregular size which would otherwise not pass through the orifice of the spindle holding the flyer thus allowing the spinning of yarn of any size on the same spinning wheel.
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 23, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 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.