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U.S. Patent & Trademark Office Grants Tumbleweed A New Digital Certificate Patent


Redwood City, CA – Tumbleweed® Communications Corp. (NASDAQ:TMWD), a leading provider of email security, managed file transfer, and identity validation appliance and software products, announced that it has been granted U.S. Patent No. 7,073,056 by the U.S. Patent and Trademark Office.

The new patent, titled "Apparatus and Method for Demonstrating and Confirming the Status of Digital Certificates and Other Data” describes a method and apparatus for demonstrating and confirming the status of digital certificates and other data. The new patent is a continuation of U.S. Patent No. 6,532,540, which is itself a divisional of Patent No. 5,903,651, the application for which was filed on May 14, 1996.

Tumbleweed's patent portfolio includes 23 granted U.S. utility patents. The patent portfolio broadly covers secure communication over Internet standards.

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Did You Know?

A patent protects your invention.

A patent for an invention is a grant of property rights by the U.S. Government through the U.S. Patent and Trademark Office. The patent grant excludes others from making, using, or selling the invention in the United States. The terms "Patent Pending" and "Patent Applied For" are used to inform the public that an application for a patent has been filed. Patent protection does not start until the actual grant of a patent. Marking of an article as patented, when it is not, is illegal and subject to penalty.

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Registration Number

Definition:
A registered patent attorney/agent is assigned a registration number that they must include on patent correspondence and forms when representing others before the USPTO.

Pro Se

Definition:
Used to designate an independent inventor who has elected to file an application by themselves without the services of a licensed representative.

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