Device for obtaining predetermined amounts of bacteria
CA 2008450 C · Owner: Lund, Marlys E. · Inventors: Nelson, Robert L.; Lund, Marlys E.; Hood, John K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
43813 Can 1A, ABSTRACT, A wand assembly having an elongate rod with a lower end having a groove or grooves formed therein. When contacted with (e.g. touched to) a colony the lower end, is able to ingest a predetermined quantity of bacteria into the groove or grooves by capillary action. The wand assembly is particularly suitable for ingesting very small quantities of bacteria, e.g. on the order of 1 x 107 colony forming units, since it is provided with a collar that is releasably attached to the rod and can be, detached from the rod after the lower end has been touched to a colony, in a manner that wipes excess unwanted, bacteria from the peripheral surface of the rod.
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 January 24, 1990 and granted August 3, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 24, 2012.
- 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.