Squeezing door for a dropping dehydrating device
CA 2267961 C · Owner: Tu, Chin-Hsun · Inventors: Tu, Chin-Hsun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A separating and dehydrating device includes a body with two chains reeved through two shafts on two ends of the body a plurality of compressing , boards, connected between the two chains. A funnel is connected between the opening of the, body and a tube which has a motor connected to a first end thereof and second end, which is closed by a door device. The door device includes two parts respectively, and pivotally connected to the periphery defining the opened end. Each of the parts, is connected to a weight which is located to push the corresponding part to be inserted into the tube so that the droppings in the tube is compressed by the force to, open the two parts.
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 April 6, 1999 and granted June 25, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 6, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 6, 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.