Buccal administration of estrogens
CA 1306950 C · Owner: Snipes, Wallace C. · Inventors: Snipes, Wallace C.; Keith, Alec D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adequate blood plasma level of 17-beta-estradiol or ethinyl estradiol is attained in a patient in need of estrogen therapy by administration of a dose of 17-beta-estradiol or ethinyl estradiol or a pharmaceutically acceptable ester thereof not greater than 150 micrograms into the vestibule of the buccal cavity of the patient and maintaining the dose in contact with the oral mucosa for a period of time sufficient for transmucosal absorption of a sufficient amount of estrogen to produce a therapeutically effective plasma concentration of estrogen.
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
- Granted September 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 2009.
- 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.