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OWNR - Contract, Liability, Ownership of Documents for Mass Produ

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Copyright your drawings!  All you have to do is put, "Copyright 19xx,
<your name>" on the drawings and it is copyrighted.  (Actually, you
don't even have to do that, but that is the simplest positive method.)
 For further protection, you can register the copyright by filling out
a form and sending it, a copy (or copies) of your drawings, and an
nominal fee (it was $10.00 at one time) to the Copyright Office,
Library of Congress, Washington, DC  20559.  (You can probably get
information on the Web.)  Forms VA, TX, and CA apply to various
copyright registrations.  The American Consulting Engineers Council
put out a publication at one time called, "Copyright Protection for
Design Professionals" that has valuable information in it.

If the drawing you copyright is a diazo copy run the original in the
long direction on a machine with a tight radius around the bulb, the
image on the diazo copy will be slightly offset from the image on the
original, an excellent means of proving copyright violations.  If made
on a photo copier, enlarge or reduce the image imperceptibly so that
it is not really apparent.  Keep the original drawing and a copy of
the drawing that you registered.

It is a lot easier to prove copyright infringement than anything else,
and punishment is severe.

Unless you authorize it, or transfer your copyright, *no one* can use
your drawings for other work until 75 years after your death.

Retain ownership of your drawings!  However, if you transfer ownership
of the drawings, retain ownership of the copyright.  (When you buy a
book, you *own* the book, but you don't own the copyright, and can't
reproduce the book or portions of the book without permission of the

A. Roger Turk, P.E.(Structural)
Tucson, Arizona