...required notice may prove that the patentee is not the original and first inventor of the improvement, or that it had been patented or described in some printed publication prior to the supposed invention, or that it had been in public use or on sale in this country for more than...

...each and every part thereof, are void, and of no effect in law, because that the said alleged inventor was not the original and first inventor or discoverer of any material or substantial part of the said alleged invention or discovery; but that the same, and every material...

...withhold from the public a valuable part of his invention. 2nd. — That the patentee surreptitiously or unjustly obtained the patent for that which was in...another, who was using reasonable diligence in adapting or perfecting the same. 8rd. — That the alleged invention had been patented or was described in print...

...required notice may prove that the patentee is not the original and first inventor of the improvement, or 5X ?}u $; w O . ѿ Ge O @ Yh m k { f w m the supposed invention, or that it had been in public use or on sale in this country for more than...

...special matter, which may be given in evidence under the general issue (section 4020, fourth clause), "that he was not the original and first inventor or discoverer of any material or substantial part of the thing patented," and it is not necessary to show under this defense that...

...patent, as " that it had been in public use or on sale in this country for more than two years," or " that it had been patented or described in some printed...prior to his supposed invention or discovery thereof." It is unnecessary to decide whether these grounds now would be sufficient cause for setting aside a...

...discovery, or more than is necessary to produce the desired effect ; or, "2. That he had surreptitiously or unjustly obtained the patent for that which was in...another, who was using reasonable diligence in adapting or perfecting the same ; or, " 3. That it had been patented or described in some printed publication...

...discovery, or more than is necessary to produce the desired effect ; or, " 2. That he had surreptitiously or unjustly obtained the patent for that which was in...another, who was using reasonable diligence in adapting or perfecting the same ; or, "3. That it had been patented or described in some printed publication...

...invention, but is an inoperative, useless and worthless device. (b.) Because the said Alexander Graham Bell was not the original and first inventor or discoverer of any material or substantial part of the thing patented, but before his alleged invention or discovery thereof, the...

...discovery, or more than is necessary to produce the desired effect; or (2) that he had surreptitiously or unjustly obtained the patent for that which was in fact invented by another, who was using reaK sonable diligence in adapting or perfecting the same; or (3) that it had been pat2 ented or described...