Multi-functional inner ear treatment and diagnostic system
CA 2173755 C · Owner: Wildflower Communications, Inc. · Inventors: Arenberg, Irving K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A therapeutic treatment apparatus (10) for use in the middle and inner ear. The apparatus (10) includes a tubular stem portion (14) attached to a medicine-retaining reservoir (30) with an internal cavity (38). The reservoir (30) includes multiple pores (46) therethrough or an opening (50) having a semipermeable membrane (54) therein which enables medicine delivery from the reservoir (30). Such delivery occurs when the reservoir (30) comes in contact with selected middle-inner ear interface tissues. A conductive member (70) for receiving electrical potentials from ear tissues is affixed to the apparatus (10). Alternatively, the apparatus (200) may include tubular first and second stem …
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 October 17, 1994 and granted April 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 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.