Buccal administration dosage form
CA 1069435 A · Owner: American Home Products Corporation · Inventors: Martin, Frederick H.; Tsuk, Andrew G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosure is directed to dosage forms for buccal administration of a durg and are directly applicable to the interior surfaces of the mouth. The dosage form is comprised of a support member which is water insoluble, waterproof and flexible a moisture activated, adhesive precursor applied to one surface of the support member and an active ingredient applied to the central portion of the support member either directly or dispersed in a matrix. In one embodiment, a recess is provided in the support member to receive the active ingredient. When the dosage form is applied directly to the interior surface of the mouth, contact with saliva activates the adhesiveand Causes the support member …
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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.