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When does U.S. Patent protection on the Bose Radio Expire At 500. plus a pop radios should cost 29.95 each without patent protection. I'm waiting to buy.?
Wiki User
∙ 15y ago
A search of USPTO revealed patent No. 4,628,528 with a date of December 9, 1986. Patents filed at that time expired 17 years from the "issue date", so that patent is most likely expired. Please note that the drawings in the patent show a boxy-looking wave guide that looks nothing like the curving waveguides seen in "autopsies" of actual Bose radios. Those may be covered separately by later patents. Other problems? You need more than just the proper waveguide geometry. It looks like you also need to feed the speakers with an amplifier that has a frequency response that's not the usual stereo setup. Combine the technical problems with the potential to infringe on later patents, and that's probably why we haven't seen a clone yet. Oh, and even if you can nail down the technical and legal aspects of the technology patent, don't forget design patents: You need to make sure that your radio doesn't look so similar to a Bose design that it would fool somebody. That's the least of your worries though. Standard disclaimer: IANAL (I am not a lawyer). If decide to take on this project and market the result, you will need one.
Wiki User
∙ 15y ago
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