[TowerTalk] Tower Jack?

[john at kk9a.com]

This website claims that there are several patents. 
http://www.superiormusic.com/towerjack.htm . I would be cautious about 
copying and selling it however it looks like it would be easy and 
inexpensive to build one for your own use. Superiormusic has a number of 
items for sale on ebay, I am not sure how they are related to the tower jack 
product.

John KK9A


To:towertalk at contesting.com
Subject:Re: [TowerTalk] Tower Jack?
From:Jim Lux <jimlux at earthlink.net>
Date:Fri, 14 Jun 2013 09:46:04 -0700
List-post:<towertalk at contesting.com">mailto:towertalk at contesting.com>

On 6/14/13 9:28 AM, Larry wrote:

The doc doesn't say anything about patents. One device label says it is
patented and the other said patent pending (I forget which said what). I
bought mine in the early 1990's.



In theory, you need to have the patent number on it if you claim patented, 
but there's plenty of examples where the mfr doesn't do that.

It could be a design patent, too (they tend to be very narrow, but at least 
you can claim "patented").
However, none of the easy searches turns up anything likely.


If the patent issued in the mid 90s, then it would be expiring about now 
(assuming the patent holder has paid all the fees. otherwise it would have 
expired ealier)