Conveyor belt cleaners
CA 2060165 C · Owner: Gordon, James R. · Inventors: Gordon, James R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Gordon 90946, CONVEYOR BELT CLEANERS, ABSTRACT OF THE DISCLOSURE A conveyor belt cleaner comprises a metal support of length L1, including a metal guide of continuous or intermittent construction; the support extends in spaced relation across a conveyor belt of width W. A blade (or blades) of total length L2 (W ? L1 ? L2), mounted on the support is generally, triangular in cross-section having a short base wall with a, reinforcement receiving groove and two longer curved side walls, concave in the same direction converging at a belt scraping, edge. The blade or blades are mounted directly or indirectly, on the support guide by mounting elements that include metal reinforcements in the base …
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 January 28, 1992 and granted November 29, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 2014.
- 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.