Multiple Choice
Pat invents a new type of pillow and obtains a patent for it. Quiet Rest Inc. believes that Pat's invention infringes on the firm's previously patented cushion. After issuance, a challenge to a patent must be brought within
A) nine months.
B) twenty years.
C) the life of the inventor plus 70 years.
D) no specific time.
Correct Answer:

Verified
Correct Answer:
Verified
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