Endocurietherapy
CA 2067804 A1 · Owner: Good, Roger R. · Inventors: Good, Roger R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
2067804 9203179 PCTABScor01, To provide versatile radioactive implants (10) and methods of radiation therapy, plating methods such sputtering as are used to, coat single elements such as microspheres wires and ribbons with , radioactive metals (16) protective layers (20) and, identification layers (18). The resulting solid radioactive, multilayered, seamless elements are implanted individually or combined in intercavity applicators, with fabrics and in ribbons. Because they have selected half-lives and intensities, they provide flexibility in treatment, permitting low intensity or high intensity treatment using temporary or permanent implants and implants with high intensity or low …
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 9, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2013.
- 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.