On an old Non-provisional, if the patent owner keeps revising claims based on alternative embodiments and gets them granted,
What priority date do the new granted claims have? Old priority date or when the new claims are granted ?
Ex: Patent owner patents a walking teddy bear toy with alternative embodiments of walking pandas, and walking insects in 2000.
He is granted claims of a walking teddy bear. Claims date back to 2000.
In 2015 a walking grasshopper toy is all the rage.
Patent owner deletes all claims on teddy bear and goes to revise all the patent claims to walking insects hoping to encompass the grasshopper toy.
If granted, will the manufacturer of the walking insect toy be liable from 2015 or 2000 if claims are granted?