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Introduction to Nonobviousness

This introduction provides an overview of non-obviousness in patent law, specifically focusing on the conditions for patentability. It explains that a patent may not be obtained if the differences between the subject matter sought to be patented and the prior art are such that the subject matter as a whole would have been obvious to a person with ordinary skill in the relevant art at the time of invention. The example of Justice Morrison Remick Waite Rubber Tip Pencil is examined to illustrate the concept.

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Introduction to Nonobviousness

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  1. Introduction to Nonobviousness Patent Law 3.11.04

  2. 35 USC Sec 103 § 103. Conditions for patentability; non-obvious subject matter (a) A patent may not be obtained though the invention is not identically disclosed or described as set forth in section 102 of this title, if the differences between the subject matter sought to be patented and the prior art are such that the subject matter as a whole would have been obvious at the time the invention was made to a person having ordinary skill in the art to which said subject matter pertains. Patentability shall not be negatived by the manner in which the invention was made.

  3. Justice Morrison Remick Waite

  4. Rubber Tip Pencil - 655 Blair's patent was for 'a new manufacture,' being a new and useful rubber head for lead-pencils. It was not for the combination of the head with the pencil, but for a head to be attached to a pencil or something else of like character. It becomes necessary, therefore, to examine the description which the patentee has given of his new article of manufacture,

  5. Everybody knew, when the patent was applied for, that if a solid substance was inserted into a cavity in a piece of rubber smaller than itself, the rubber would cling to it. The small opening in the piece of rubber not limited in from or shape, was not patentable, neither was the elasticity of the rubber. What, therefore, is left for this patentee but the idea that if a pencil is inserted into a cavity in a piece of rubber smaller than itself the rubber will attach itself to the pencil, and when so attached become convenient for use as an eraser?

  6. An idea of itself is not patentable, but a new device by which it may be made practically useful is. The idea of this patentee was a good one, but his device to give it effect, though useful, was not new. Consequently he took nothing by his patent.

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