Methods and molds for manufacturing an ampule
CA 2135075 A1 · Owner: Mckinnon, Charles Neal, Jr. · Inventors: Bartholomew, Victor Leon; Mckinnon, Charles Neal, Jr.; Peterson, Steven Fisher
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and mold for making an ampule (60) for a needleless or jet injector device. The tip (48) of a core pin (40) is guided into a clearance hole (28) sufficiently large to prevent the tip from hitting the mold cavity (22). Plastic is injected into the mold (20) and flows into the space between the core pin tip (48) and the clearance hole (28) forming a vestigial nozzle pilot cylinder (70) around and over the ampule nozzle (68). The ampule (60) is removed from the mold (20) and the vestigial nozzle pilot cylinder (70) is removed to form a finished ampule. A core pin tip is made of drawn wire or is separately replaceable on the core pin. A nozzle of an ampule is cast in place. An …
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 May 5, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 5, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 2015.
- 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.