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treatise covers the entire field of the patent laws of the United States, as those laws were enacted in the statutes and developed in the decisions, from the foundation of the national government in 1789, down to the first day of September, 1883. How accurately and well it covers that field, is a question which belongs to the bar and to the bench; and to the generous judgment of the bench and of the bar, I commit the result of my long and interesting labor.
A. H. W. HARTFORD, CONNECTICUT,
September 26, 1883.
TABLE OF CONTENTS.
11a. Illustrated by the Telephone
3. Patent law meaning of the word Cases.
12. Illustrated by the five cases
4. Patent law meaning of the word when compared.
process," as illustrated in the 13. Illustrated by the five
case of Corning o. Burden.
5. Patent law meaning of the word 14. Deduced from the five cases as
“process," as illustrated by compared and contrasted.
the case of MacKay 0. Jack- 15. Illustrated by the eighth claim
man, and by other Circuit Court of Morse.
16. Machines, and improvements of
6. Patent law meaning of the machines.
word "process," precisely de- 17. Manufactures.
18. Compositions of matter.
7. Difference between a patent for a 19. Distinction between machines,
“process," and a patent for a manufactures, and composi-
“principle,” inquired into.
tions of matter.
8. Illustrated by the case of McClurg 20. Designs.
21. On whose invention designs are
9. Illustrated by the case of O'Reil- patentable.
ly o. Morse.
22. Utility and beauty of designs.
23. Invention necessary to patent-
24. Many negative rules, but no
affirmative rule, for determiu-
ing the presence or absence of
25. Mere mechanical skill is not in-
26. Circumstances indicating differ-
ence between invention and me-
27. Excellence of workmanship is
28. Substitution of materials is not
29. Exception to the last rule.
30. Enlargement is not invention.
31. Change of degree is not inven.
32. Aggregation is not invention.
33. Simultaneousness of action is not
necessary to invention.
34. Duplication is not invention.
35. Omission is not generally in-
36. Substitution of equivalents is
37. New combination, without new
mode of operation, is not inven-
38. Using old thing for new purpose
is not invention.
52. Novelty necessary to patent-
53. Novelty defined.
54. Not negatived by knowledge or
use in a foreign country.
55. Not negatived by private patent
granted in a foreign country.
56. Prior printed publications.
57. Fullness of prior patents and
58. Novelty not negatived by any
59. Qualification of the last rule.
60. Suocessful prior applications.
61. Novelty not negatived by any
unpublished drawing, or prior
tically useless. [tiquity of parts.
66. Novelty not negatived by an-
67. Novelty pot negatived by prior
accidental and not understood
68. Novelty not negatived by any.
thing neither designed, nor ap-
parently adapted, nor actually
used for the same purpose as the