Let $A= \bigoplus_{i=0}^{N}A_i$ be a finitely graded ring with the property that an element $(a,b)$ is zero under the natural map 
$$A_i \times A_j \to A_{i+j}$$
if and only if $i+j > N$ or $a=b=0$. Hence this ring is "almost" an integral domain until degree $N+1$.

Do these types of rings have a name? 

If we assume $A$ is noetherian then it must be a finitely generated algebra over the noetherian ring $A_0$ and thus the quotient $R/I$ of a polynomial ring $R$ over $A_0$. 

Are there any necessary and sufficient conditions we may impose on $I$ so that the property above holds?