Auto-destruct syringe
CA 2282974 A1 · Owner: Campbell, Douglas C. V. · Inventors: Campbell, Douglas C. V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to disposable auto-destruct syringes which are rendered non-reusable during or after a first use. BACKGROUND OF THE INVENTION A principal function of syringes is in conjunction with hypodermic needles for the, treatment of disease by way of intravenous or intramuscular injection in humans or, animals. When treating disease in this way it is particularly important to , prevent infection of the patient injected. Communicable diseases are transmitted and infection can be caused in different ways, such as, by contact with body fluids of an infected person. Infection or transmission of a, communicable disease is undesirable and is especially unfortunate when due to …
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 September 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 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.