Capillary tube assembly and method of manufacture
CA 2018962 C · Owner: Hansen, William G. · Inventors: Hansen, William G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title, CAPILLARY TUBE ASSEMBLY, AND METHOD OF MANUFACTURE Inventor, William G. Hansen, Abstract, A capillary tube assembly having a capillary tube body for connection to a refrigeration system and a tube end cap for accepting a plurality of capillary tubes each of which is identically preformed. The capillary tube assembly is adaptable to different refrigeration systems of varying capacity by utilizing a suitable number of identically preformed capillary tubes together with a suitable tube end cap. The capillary tube assembly is manufactured by preforming identically a suitable number of capillary tubes preparing a, tube end cap with the desired number of apertures and inserting …
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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 June 13, 1990 and granted September 21, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 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.
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.