Reversible latch assembly with integrated function

A door lock comprising:

• a generally rectangular case having a front plate for confronting a door frame and having at least an inside side and outside side for enclosing the lock works;
• a latch bolt disposed in said case a portion of which is selectively extensible from said front plate of said case for securing relative movement between said door and said door frame;
• a dead bolt disposed in said case, a portion of which is selectively extensible from said front plate of said case for further securing relative movement between said door and said door frame;
• a first lockable handle means for selectively retracting said latch bolt disposed on the outside of the side of said case;
• a second handle means disposed on the inside of said case for simultaneously retracting said latch bolt and said dead bolt;
• a first lock means within said case for securing at least one of said first and second handle means against operation;
• a second lock means operable from the said inside of said door for selectively releasing said first lock means and retracting said dead bolt in a first position, deploying said first lock means in a second position and deploying said first lock and extending said dead bolt in a third position;
• a third key operated lock means operable from the outside side of said door for selectively retracting said latch bolt and said dead bolt;
• means for preventing operating of said third lock means when said dead bolt is extended;
• and
• an inner and an outer retractor hub means which are axially aligned and mounted for independent rotation within said case, said inner retractor hub means being located adjacent to said inner side of said case and operated by said second handle means, said outer retractor hub means, being located adjacent to said outside side of said case and operated by said first lockable handle means.