Loudspeaker system with broad image source
CA 1045985 A · Owner: Bose Corporation · Inventors: Barker, Charles R. (Iii)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A loudspeaker system comprises a woofer in a front panel, a midrange driver facing to the front and a tweeter in a corner panel separated from the midrange driver by the woofer and pointing to the front and side with a crossover network arranged to energize at least the midrange and tweeter in an overlapping frequency range. An adjustable deflector is positioned near the tweeter. Another embodiment of the invention has only a woofer and a tweeter on only one corner panel with the crossover network arranged to energize the two in a common frequency rang that is greater than an octave.
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 9, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 9, 1996.
- 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.