You likely can accomplish this by deleting all permissions to the table at some point in time and then subsequently re-granting those permissions at a later time. This won't stop updates though by the owner of the table. I do not know of any way to prevent that.
This would assign permissions to a user or a role
grant select, insert, update, delete on TABLE to USER_NAME, ROLE_NAME;
This would remove those permissions
revoke select, insert, update, delete on TABLE from USER_NAME, ROLE_NAME;