Device for assisting childbirth
CA 2131887 A1 · Owner: Alexander, Gary E. · Inventors: Alexander, Gary E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device (3) to assist in removing a fetus (1) from a woman's birth canal (2) during childbirth is provided having a pliable elongated, hollow member (5) sized to fit over the head (4) of the fetus (1). A collar (7) is provided attached to one end (8) of the hollow member (5) to restrict the opening of the hollow member at that end (8) to the desired size. Several types of inserters (27) are also provided for inserting the hollow member (5) over the head (4) of the fetus (1).
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 June 10, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 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.