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Or challenged before the patent is issued. The USPTO encourages this; fees for notifying them of prior art are much lower before issuance.



Wait a fee is imposed? I get why I think but if your posting of prior art proves to be true then you should have your fee refunded.


I'd have to check but if I remember right, before issuance there's no fee for less than 20 items of prior art, and just a flat $200 fee for more. After issuance I think the fee is $35,000.


so you have to pay them $35,000 to show a patent they issued is bullshit.

Outrageous.




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