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<div class="moz-cite-prefix">On 8/7/2023 9:56 AM, John D. Hays
wrote:<br>
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cite="mid:CAN77r3y2rgOias-UGTHDMc-VYCn74mxQOQHT+pOtva0Q1FCXsg@mail.gmail.com">
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<div class="gmail_default" style="font-size:small">There is no
mention of a licensing requirement in the protocol
specification -- <a
href="https://www.tapr.org/pdf/AX25.2.2.pdf"
moz-do-not-send="true" class="moz-txt-link-freetext">https://www.tapr.org/pdf/AX25.2.2.pdf</a><br>
A quick patent search reveals a routing patent. <a
href="https://patents.google.com/patent/US4939726A/en"
moz-do-not-send="true" class="moz-txt-link-freetext">https://patents.google.com/patent/US4939726A/en</a>
but little else.</div>
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<br>
The ghosts of Metricom! The patent status looks expired, too:<br>
<br>
2007-12-14 Assigned to PROXIM WIRELESS CORPORATION<br>
2007-12-16 Anticipated expiration<br>
Status Expired - Lifetime<br>
<br>
73,<br>
Dana K6JQ<br>
<br>
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