Replaceable liner for powder coating apparatus
CA 2226201 C · Owner: Alexander, Kevin L. · Inventors: Alexander, Kevin L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispensing device for powder coating material includes an outer device portion having a first inner surface and a central passageway for mounting the outer portion on a rotary shaft for rotating the dispensing device. An inner portion of the dispensing device has a second outer surface shaped complementarily to the first surface and a somewhat bell- or cup-shaped third inner surface. Threaded fasteners retain the inner portion in the outer portion with the first and second surfaces in engagement. The outer portion is constructed from a first material having mechanical strength to withstand the stresses attending rotation of the dispensing device. The inner portion is constructed from a …
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 5, 1998 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 5, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 5, 2020.
- 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.