I have a jewelry design that is simply 3 interlocking solid silver rings that can be used as a baby's teething ring. I have been told that I am in infringement of design patent d579373 ..which is 3 hollow silver circular tubes linked together and sold as a baby's teething ring. It is possible that a design as simple as 2 or 3 interlocking rings can be patented...and anything made using 3 interlocking circles is considered infringement?
Your interlocking rings might have been anticipated also by https://www.google.com/patents/US6484536 "Interlocking Rings" :
from the DESCRIPTION