Sawtooth wire
CA 2444941 A1 · Owner: Graf + Cie Ag · Inventors: Graf, Ralph A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a sawtooth wire for producing allsteel sawtooth clothing for the doffer and/or doffing cylinder of a carding machine with a plurality of teeth successively arranged in the longitudinal direction of the wire wherein each tooth has, a tooth breast beginning at the tooth bottom and extending in the direction toward the tooth tip and a tooth back which is, connected with the tooth breast by two tooth flanks extending parallel to the longitudinal direction of the wire and which extends from the tooth tip in the direction of the following tooth bottom, in which at least one tooth flank has at least one profile segment, which is located between the tooth tip and the tooth …
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
- Filed October 9, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2025.
- 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.