Dual function bailer
CA 2358838 A1 · Owner: Pratt, David Wayne · Inventors: Pratt, David Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An upper imperforate cap closes the uppermost end of a bailer and a lower imperforate cap closes the lowermost end of the bailer. In a preferred embodiment, screwthreads are formed in the uppermost and lowermost ends of the bailer and complemental screwthreads are formed in the upper and lower caps. In another embodiment, screwthreads are formed in a downspout and complemental screwthreads, are formed in an imperforate downspout cap. By capping the opposite ends of a bailer, the bailer serves as its own container when the sample contained within it is shipped to a, laboratory. This eliminates VOC devices nozzles, and the concomitant , contamination that may result from emptying a bailer …
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 16, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2023.
- 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.