In Reply to: OK, I looked up US-8320604-B1 Composite loudspeaker cone Vandersteen; Richard et al. 2012-11-27 posted by John Marks on January 1, 2024 at 14:04:27:
A quick scan looks like they are patenting how they make their cones, not patenting using carbon fiber to make cones.
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Follow Ups
- RE: OK, I looked up US-8320604-B1 Composite loudspeaker cone Vandersteen; Richard et al. 2012-11-27 - tomservo 01/1/2414:27:39 01/1/24 (5)
- YEAH, I GOT THAT!!! - John Marks 16:07:57 01/1/24 (3)
- RE: YEAH, I GOT THAT!!! - 13th Duke of Wymbourne 18:28:49 01/1/24 (2)
- That seems to be what Jeff Rowland thought - John Marks 05:45:45 01/2/24 (1)
- RE: That seems to be what Jeff Rowland thought - hahax@verizon.net 19:02:32 01/3/24 (0)
- Thank you both for your thoughts on this matter. - Craiger56 14:50:05 01/1/24 (0)