The front cover is identical to that shown on the first-edition dust jacket. As shown in the following eBay links, there are no copyright notices on the first-edition dust jacket.

eBay:

• image 1 (front cover)
• image 2 (back cover)
• image 3 (spine)
• image 4 (side)
• image 5 (side)
• image 6 (front and back flaps)
• image 7 (front cover without dust jacket)
• image 8 (title page)
• image 9 (copyright page)
• image 10 (excerpt)
• image 11 (excerpt)

Using the search term "Bachman Books" and looking at the year of publication of the jacket, 1985, we see that there is only one possibly relevant copyright registration, TX0001676083. However, the registration is only for the literary work and not the dust jacket. There are no copyright registrations for the dust jacket.

Thus the entire dust jacket is placed into the public domain in the US.

This work is in the public domain because it was published in the United States between 1978 and March 1, 1989 without a copyright notice, and its copyright was not subsequently registered with the U.S. Copyright Office within 5 years. Unless its author has been dead for several years, it is copyrighted in the countries or areas that do not apply the rule of the shorter term for US works, such as Canada (50 pma), Mainland China (50 pma, not Hong Kong or Macau), Germany (70 pma), Mexico (100 pma), Switzerland (70 pma), and other countries with individual treaties. See this page for further explanation. Deutsch ∙ English ∙ español ∙ français ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ português ∙ português do Brasil ∙ русский ∙ sicilianu ∙ slovenščina ∙ 中文 ∙ 中文（简体） ∙ 中文（繁體） ∙ 中文（臺灣） ∙ +/−