Let Your Fingers Do the Shaving

Dear Rich: I am trying to find the status of this invention US 3,314,146 dated 1967. I have done my due diligence and can find no answer to whether this invention is still active. If this invention has run its course of 17 years is there any way an inventor by paying fees still keep it active?  Assuming periodic maintenance fees were paid, this patent would have dropped into the public domain in 1984. The invention claimed here -- fingertip rotary electric shavers -- is now available to everyone!  We're not sure why you're asking but the Dear Rich Staff wonders if you're working on a sequel to The Hand. If so, you might want to consider this one, too.