Cygnus Systems, Inc., the holder of the '850 patent, has asserted the patent in litigation against Google, Microsoft and Apple alleging their use of document preview icons - thumbnails - in their operating systems and browsers. If successful in this action, this patent may be asserted against other operating systems and browsers. The '850 patent claims continuation from a patent application filed June 12, 1998.
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WHAT'S NEEDED:

Prior Art

Publications Published Prior to June 12, 1997

February 4th, 2009

This patent application was filed on June 8, 2001 but claims continuation from a patent application filed June 12, 1998, resulting in an earliest date of invention of June 12, 1997. While it is possible that the invention did not occur until after June 12, 1997, finding relevant prior art that published before that date assures it application. Publications can include any form of printed or electronic publication that discusses one or more elements of the claim of the patent.
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Products On Sale, Offered for Sale or Publicly Used Prior to June 12, 1997

February 4th, 2009

This patent application was filed on June 8, 2001 but claims continuation from an application filed June 12, 1998, resulting in an earliest date of invention of June 12, 1997. While it is possible that the invention did not occur until after June 12, 1997, finding relevant prior art before that date assures it application. Such prior art may include products embodying the invention that were sold, offered for sale, or publicly used by the patent holder, an inventor, or any third parContinued....
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Information that this Process was Public Knowledge or Publicy used Prior to June 12, 1997

February 4th, 2009

This patent application was filed on June 8, 2001 but claims continuation from a patent application filed June 12, 1998, resulting in an earliest date of invention of June 12, 1997. While it is possible that the invention did not occur until after June 12, 1997, finding relevant prior art before that date assures it application. Such prior art may include processes embodying the invention that were in the public domain or publicly used by the patent holder, an inventor, or any thirdContinued....
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Patents and Published Patent Applications Filed in the U.S. Prior to June 12, 1998

February 4th, 2009

Although this patent application was filed on June 8, 2001, it claims continuation from a patent application file June 12, 1998, resulting in an earliest date of invention of June 12, 1997. While it is possible that the invention did not occur until after June 12, 1997, finding relevant prior art before that date assures it application. Such prior art may include patents issued before June 12, 1997, and/or published patent applications that were filed in the U.S. prior to June 12, 1997.
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Knowledgeable Persons

February 4th, 2009

Often times one of the best means of identifying prior art is to contact persons involved with the development of this invention or persons involved with the development of inventions cited as prior art in the patent application (click on Read the Patent, find the Citations section of patents and other prior art, click on one of those items, and find the named inventor or author).
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Google, Microsoft, Apple sued over preview icons - cNet News - December 26, 2008