Apparatus for injection molding
CA 2116854 C · Owner: Lagim, Inc. · Inventors: Shah, Chandrakant S.; Verman, Sarbjit
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A nozzle (A) for injection molding of thermoplastic materials which includes a nozzle body (17) having a bore (18) to provide a flow path for molten thermoplastic. The nozzle body includes a shut-off valve fluid pin housing assembly (19) for reciprocal movement in the nozzle body. The fluid pin housing has a tip portion (22) and a fluid passage (14) formed in the housing and open at the tip portion and the other end of the fluid passage communicating with an associated source of pressurized fluid. An actuator (46) is provided for reciprocation within the nozzle body of the shutoff valve fluid pin housing to an open or closed position controlling the flow of plastic through the nozzle …
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 August 27, 1992 and granted June 17, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2014.
- 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.