Spraygun with built-in quick-fit connector
CA 2501688 C · Owner: Howcroft, Michael W. · Inventors: Delbridge, Neil; Joseph, Stephen C. P.; Howcroft, Michael W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spray gun (1) and a detachable liquid reservoir (2) releasably attached to the spray gun (1) by engagement of mateable non-threaded formations provided , on the spray gun (1) and the reservoir (2). The spray gun (1) has an integral connector boss (20) with a socket (21) for reception of a connector tube (15) of the reservoir (2). The boss (20) has an external flange (22) at the distal end and the reservoir (2) has hook members (16 17) separate from the , connector tube (15). The hook members (16 17) are co-operable with the flange , (22) when the connector tube (15) is received in the socket (21) to secure releasably the reservoir (2) to the spray gun (1).
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 24, 2003 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 24, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 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.