Access openings in vacuum bandage
CA 2481016 C · Owner: Lockwood, Jeffrey S. · Inventors: Lockwood, Jeffrey S.; Petrosenko, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wound dressing member (19) is provided for use in a vacuum bandage (10) connected to a vacuum source (14) and for use with a wound (12) having a wound surface (13). The member (19) may include a top surface (36) and a bottom surface (24) adapted to be in contact with and generally conform to the wound surface (13). The member (19) may further include a plurality of discrete holes (46) formed in the bottom surface (24) and at least one discrete opening (64) formed in the top surface (36). A port (40) of the member (19) may be provided to communicate with the vacuum source (14) each discrete hole (46), and the at least one discrete opening (64).
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 December 20, 2002 and granted April 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2024.
- 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.