Liquid transfer apparatus and adaptors
CA 2387093 A1 · Owner: Stevens, Alec Martin · Inventors: Stevens, Alec Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Liquid transfer apparatus (10) for transferring liquid from one container to another container including an elongate liquid storage chamber (12) having a liquid inlet (13), and a fluid outlet (16) a pump chamber (17) with a fluid , inlet (18) and fluid outlet (19) a fluid flow passage connecting the fluid outlet of the storage chamber to the fluid inlet of the pump chamber suction , pump means (24) for sucking air from the storage chamber via the pump chamber fluid inlet, and valve means (26) for selectively opening and closing the liquid inlet (13) whereby liquid may be allowed to flow into the storage chamber (12) upon suction being applied to the storage chamber (12) by the pump …
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 11, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2021.
- 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.