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Re: zip chip schematic

Scott Alfter wrote:
<snip>
>
> (Would a patent issued in 1988 have run out already?  For the longest time,
> patents were good for 17 years, but at some point, they switched to 20
> years.  Even if the issued patent was for 20 years, it might already have
> run out if the periodic maintenance fees weren't paid.  There's no
> indication on the USPTO website of whether the ZipChip patent is still
> valid.)

My search shows

1992/12/27 -  Patent Expired for Failure to Pay Maintenance Fees.
1992/07/28 - Maintenance Fee Reminder Mailed 


Glenn