Friend of Fred
Gold Supporting Member
- Feb 6, 2015
Interesting. As the patent holder I would assume he could have prevented Gretsch from making FilterTrons without his permission in the absence of a formal agreement. At least until the patent expired, which I believe would have been the beginning of 1974. I never thought about it before, but it makes me wonder if the switch to HiloTron covers for "black top" FilterTrons was for the purpose of getting rid of the patent number.What he did not tell is that Ray Butts was massively ripped-off by Gretsch because he only had a hand-shake contract with them. After the company went to Baldwin he did not get a penny from them for using his pickup-design.
This might be a possible explanation.I never thought about it before, but it makes me wonder if the switch to HiloTron covers for "black top" FilterTrons was for the purpose of getting rid of the patent number.
No, it was Butts who filed for patent. He was given an unknown sum for each humbucking pickup that Gretsch built.Do we know who actually applied for it? Maybe Gretsch owned the patent?
Exactly what I was thinking.Perhaps a case of two birds, one stone.
Both patents were granted and as far as I know there never was a legal dispute. Neither of them came up with the concept of hum cancellation with multiple coils. That had been around for a long time. My guess is that both parties accepted that while similar, the pickups were different enough to not infringe on each other.Just out of curiosity, if Mr. Butts and Mr. Lover were both working toward the same goal, the humbucker, was the patents office ever involved on the legal side?