Patents are renewable if I recall. I don't know if they changed when they
changed trademarks. Trademarks are good as long as the owner is still alive
and other rules (used to be 28 years and renewable once). I have lost touch
with the IP law stuff.
73, Larry W6NWS
-----Original Message-----
From: Drax Felton
Sent: Friday, June 14, 2013 12:00 PM
To: Jon Pearl - W4ABC
Cc: towertalk@contesting.com ; Jim Lux
Subject: Re: [TowerTalk] Tower Jack?
Patents are only good for 18 years. Surely this thing is out by now.
Sent from my iPhone
On Jun 14, 2013, at 11:00 AM, Jon Pearl - W4ABC <jonpearl@tampabay.rr.com>
wrote:
On 6/14/2013 10:23 AM, Jim Lux wrote:
Is it patented? Or require some unusual fabrication?
Apparently it's patented: http://www.superiormusic.com/towerjack.htm
*NOTICE !! /Tower Jack/ Products are patented under several United States
patents.
Manufacturing and selling of these products by anyone other than
Tower Jack Products of Mt. Juliet, TN is _strictly illegal_.*
I actually found a larger 'entire' picture on fleabay:
http://www.ebay.com/itm/Rohn-type-tower-install-removal-tool-leg-alignment-jack-heavy-duty-radio-ham-/271216494401
From the pictures I've seen, it seems that almost any metal fabrication
shop could crank them out. Maybe not for the same price, but it sure
doesn't look like it would be hard to make them.
One would guess that if your intention is not to sell them, you could
'one-off' a copy.
73,
Jon Pearl - W4ABC
www.w4abc.com
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