Canadian application, no grantCanada
Noise shielding ear-piece
CA 2124231 A1 · Owner: Paivarinta, Reijo Jack · Inventors: Paivarinta, Reijo Jack
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ear-piece for a telephone receiver or ear defender which includes an ear receiving enclosure having a periphery for juxtaposition to the regions of a user's head surrounding his ear which conforms to the cranial region of a user around his ear.
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 May 25, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 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.
FiledMay 25, 1994
GrantedNo grant recorded
Term endedMay 25, 2014
Patent numberCA 2124231 A1
Classification (IPC)A61F11/14 +2 more
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.