Disposable scalpel
CA 2128120 A1 · Owner: Haining, Michael L. · Inventors: Haining, Michael L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a disposable scalpel having a retractable blade. The blade may be secured in any of three positions: 1) an intermediated retracted position for shipping 2) an exposed, position for use and 3) a permanently locked retracted position. A cap is provided to cover the openings on the scalpel after the blade is secured in the permanently locked position.
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 July 15, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 2016.
- 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.