I think the patent, which is non-renewable, and the code implementing the
patent are two separate things.  The first they lose rights over, but the
second is covered by a work-for-hire agreement since it could be used
internally, or even sold as a product by the corporation without patent.
But I could be wrong.

Ron Newman, M.S., M.M.E.
Founder, IdeaTreeLive.com <http://www.Ideatreelive.com> Knowledge Modeling
www.RonPiano.com
Blog <https://blog.ideatreelive.com>






On Tue, Jul 2, 2019 at 4:06 PM Tom Johnson <t...@jtjohnson.com> wrote:

> Would not the corporation have to renew the patent at some point?
> Tom
>
> ============================================
> Tom Johnson - t...@jtjohnson.com
> Institute for Analytic Journalism   --     Santa Fe, NM USA
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>
> On Tue, Jul 2, 2019 at 3:55 PM Ron Newman <ron.new...@gmail.com> wrote:
>
>> I was awarded a software patent 30 years ago while at a corporate job.
>> That patent has since expired, of course.  I assume I signed a
>> work-for-hire agreement the first day on that job.
>>
>> Now that it's expired, I also assume the corporation still owns the code,
>> and so I'm not free to open source it.  Correct?
>>
>> Any IP attorneys here?
>>
>> Ron Newman, M.S., M.M.E.
>> Founder, IdeaTreeLive.com <http://www.Ideatreelive.com> Knowledge
>> Modeling
>> www.RonPiano.com
>> Blog <https://blog.ideatreelive.com>
>>
>>
>>
>>
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