Under current U. S. copyright legislation, works produced on a for-hire basis and owned by firms enjoy monopoly protection for

95 years starting from the date of their publication

Explanation:

The Copyright Act of 1976 (including its future amendments) is the current law that protects intellectual property in the US. It has been updated several times, the last amendment was done by Congress on March, 2020. It covers literary, dramatic, musical, and artistic works made registered by an individual or by a business. It doesn't cover new ideas, inventions or discoveries (those must be covered by patents if applicable).

answer; buying the bill at a discount from the face value to be received at maturity;