Manually operable dispensing pump
CA 2305281 C · Owner: Corba, Robert E. · Inventors: Miller, Allen D.; Crapser, James R.; Corba, Robert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A manually operable dispensing pump (10) for use with a primary container (12) containing a primary fluid, the pump having a body containing a sprayer mechanism and having a primary attachment means (20) for attaching to the primary container and secondary attachment means for attaching to a secondary container (14) having contents to be co-dispensed with the primary fluid. The secondary container is attachable by the secondary attachment means directly to the body at a location remote from the primary container. The secondary container has a holding chamber for holding selected contents and an outlet that provides immediate communication between the holding chamber and the sprayer …
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 13, 1998 and granted May 20, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 2020.
- 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.