Canadian application, no grantCanada
Saw chain with indented side links
CA 2021554 A1 · Owner: Carlton Company · Inventors: Atkinson, Renwick S.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A saw chain with side links that have bases that are indented in regions located below rivet-receiving bores in the links. The indents inhibit cracking produced by heat build-up in the links.
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 July 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 19, 1990
GrantedNo grant recorded
Term endedJuly 19, 2010
Patent numberCA 2021554 A1
Classification (IPC)B27B33/14
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.