Page 208.

1. What are the principal incidents of ownership in common?

CHAPTER IV.

Page 209.

1. Define debts?

2. How are mortgages now considered by the law? 3. What is insurance?

2. Is there a common law right in patents?

Pages 214-215.

1. Who are the principal officers of the patent office? 2. What are their respective duties?

Pages 216-219.

1. What provisions are made for the printing of papers relative to patents, and for the disposal of such printed copies?

Page 221.

1. In what name are patents issued?

2. By whom are they signed?

3. How are patents construed?

Page 222.

1. On what grounds may the United States maintain a suit in equity for the cancellation of a patent?

2. What is contained in a patent?

3. Can a patent cover more than one invention? 4. From what time does a patent take effect?

Page 223.

1. What inventions are patentable?

2. To whom may a patent be issued?

QUESTIONS.

Page 224.

1. What are some of the qualities which an invention must have in order to be patentable?

2. May a patent be issued on an invention previously patented abroad?

Page 225.

1. What are the requisites of an application for a patent?

2. Why is an exact description of a patent required?

Page 227.

1. Describe the procedure in the examination and issuing of a patent?

Page 228.

1. May patents be issued to government officers for inventions to be used in the public service?

Page 229.

1. Under what circumstances may a patent be issued to an assignee?

Page 230.

1. When may a patent be issued to an executor or administrator?

2. When may a patent be issued to the guardian of an insane person?

Page 231.

1. May persons purchasing an invention before application for patent, use or sell the thing purchased?

1. How may affidavits and depositions be taken in patent cases?

2. How may the presence of witnesses be secured?

Page 235.

1. What penalties are there for those failing to attend or refusing to testify?

Pages 236-237.

1. What appeals may be taken in patent cases?

Page 238.

1. When may a defective patent be re-issued?

Page 239.

1. What is the object of the provision of the statutes authorizing the re-issue of defective patents?

Page 240.

1. What is a disclaimer?

Page 241.

1. Is a patent void on account of the previous use of the invention in foreign countries?

Page 242.

1. What notice of application for extension must be given?

Page 243.

1. What official has the authority to hear and decide applications for extension?