Orthopedic pillow with speakers
CA 2049526 A1 · Owner: Albert, Chester · Inventors: Albert, Chester
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
ORTHOPEDIC PILLOW WITH SPEAKERS" A pillow comprises a horizontally, extending body for supporting the head of a user of the pillow. The pillow also comprises a pair of leg members which extend transversely at opposite lateral ends of the body and downwardly from a lower surface thereof, thereby defining a space between the leg members and under the body. A pair of speakers are positioned in the body each at least partly above a respective leg member and in a way so that sound emitted thereby is directed substantially vertically when no load is applied on the pillow. The body being made of a flexible material the, resting of the user's head on an upper central portion of the body causes this …
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 20, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 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.