This logo was used by Southwest Technical Products Corporation of San Antonio, Texas from around 1971 to 1985. It was never registered with the United States Patent and Trademark Office and never appeared with a TM symbol.
This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
== ((int:filedesc)) == ((Information |Description = This logo was used by Southwest Technical Products Corporation of San Antonio, Texas from around 1971 to 1985. It was never registered with the United States Patent and Trademark Office and never appeared with a TM symbol. |Source = Vectorized from File:Swtpclgo.png |Date = 1971 |Author = Southwest Technical Products Corporation of San Antonio, Texas |Permission = |Other_versions = ((Bitmap|File:Swtpc...
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