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European Patent Office fee list: https://my.epoline.org/epoline-portal/classic/epoline.Scheduleoffees https://my.epoline.org/epoline-portal/classic/epoline.Sche

European Patent Office fee list: https://my.epoline.org/epoline-portal/classic/epoline.Scheduleoffees https://my.epoline.org/epoline-portal/classic/epoline.Schedu... has 4 pages of prices

pclmulqdq 2y ago
Looks like I was wrong about which patent office I'm thinking of, thanks for posting. Seems like it's the US that has doubling fees, doubling every 4 years.