SQL & PL/SQL

I have the below SQL

select * from products
where prod_name = 'CASKET'
and (CASE
                WHEN :status = 'FULL' THEN product_no is not null
                WHEN :status = 'OPEN' THEN product_cat IS NOT NULL
                WHEN :status = 'CLOSED' THEN product_no AND product_cat IS NULL
                ELSE NULL
             END)

             I get the below error

             ORA-00905: missing keyword

What I am trying to acheive is when parameter status = FULL then bring all records with product_no is empty,

status = OPEN then bring all records with product_category is empty

status = CLOSED then bring all records with product_no and product_category is empty.

How can I do this with case statement?