Both copyright and patent should be reformed to have the same duration, 21 years (until you are replaced by your descendant's apprentices):
1. For copyright, these 21 years should be organised as 4-12yr granted (varying on the work, lack of registration meaning public domain by default) and renewable every six months with an exponentially increasing maintenance fee (first maintainance fee might be placed in the ballpark of £8192).
2. For patents, these 21 years should be organised as 3½ years after grant (this will encourage to file as soon as possible to get protection), renewable every 3½ years with an exponentially increasing maintenance fee (first maintainance fee might be placed in the ballpark of £1,048,576).
3. For sculptures and buildings, these copyright should cease one year after construction is completed, but with a limitation that protection not allowed to exceed 7 years in total.
