Roll-on dispenser
CA 2000075 C · Owner: Bengston, John A. · Inventors: Bengston, John A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wide roll-on dispenser has a fluid reservoir and an applicator roller mounted in a housing with a valve mechanism therebetween to control the flow of fluid from the reservoir to the roller, the valve mechanism being operated by movement of the housing with respect to the reservoir. In a preferred arrangement the housing is moved to operate the valve mechanism by applying and removing an overcap.
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 3, 1989 and granted April 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 3, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 2011.
- 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.