Portable multi-compartment chemical storage and mixing tank
CA 2217042 C · Owner: Pettis, Billy R. · Inventors: Pettis, Billy R.; Vaughn, Randy L.; Filson, Brad S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable holding and mixing tank is provided with a valving assembly, the activation of which responsively enables substantial simultaneous flow of each dissimilar liquid contained within the respective holding compartments to a manifold assembly. The substantial simultaneous flow of each dissimilar liquid to the manifold assembly thereby minimizes (if not eliminates entirely) the possibility that incorrect mixing ratios of the dissimilar chemicals will occur. The manifold assembly mixes the liquids and discharges the mixed liquid through a meter to a transfer conduit. As such, the mixed liquids may be transferred to a storage tank (for example, a storage tank associated with agricultural …
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 21, 1997 and granted July 10, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 21, 2019.
- 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.