Disposable hypodermic syringe and method of manufacture
CA 1105794 A · Owner: Becton, Dickinson And Company · Inventors: Geiger, Kenneth E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosure is of a disposable hypodermic syringe and the method of its manufacture. The syringe comprises a barrel, a piston plunger slidably mounted in the barrel a, handle and shank connected to the piston-plunger a needle hub, welded to and closing one end of the barrel and supporting a hypodermic needle, a shield for the needle and a cap which closes the other end of the barrel. A novel feature of the syringe of the invention is a weakened zone of the barrel in a line circumscribing the barrel at a point adjacent to the edge of the needle hub. An advantage of the syringe of the invention is its disposability after use. To dispose of the syringe, the operator first replaces the …
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
- Granted July 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 1998.
- 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.