Summary

Benjamin Robbins Curtis Kinsman v. Parkhurst — Opinion of the Court

The invalidity of the patent does not render the sales of the machine illegal, so as to taint with illegality the obligation of the defendants to account. Even where money has been received, either by an agent or a joint owner, by force of a contract which was illegal, the agent or joint owner cannot protect himself from accounting for what was so received, by setting up the illegality of the transaction in which it was paid to him.
Source: Wikisource

Benjamin Robbins Curtis Kinsman v. Parkhurst — Opinion of the Court

The motion to dismiss the appeal was overruled, the court being of opinion that it was open to the appellants to review the decision made by the interlocutory decree. But the interlocutory decree does not direct the master to charge Goddard and Kinsman jointly with profits on sales made by Kinsman alone. If the master put such an interpretation on the decree, it was an erroneous interpretation, and should have been brought before the court below by an exception. It is too late to object to it here, for the first time.
Source: Wikisource

Benjamin Robbins Curtis Kinsman v. Parkhurst — Opinion of the Court

The circuit court made an interlocutory decree, declaring Parkhurst's right to an account, referring the cause to a master, to take and state the accounts, directing the master, in taking the accounts, to ascertain and report the number of machines made and sold by Kinsman and Goddard, or either of them; the advances made by Kinsman and Goddard, or either of them; and charging a profit of one hundred dollars on each machine sold.
Source: Wikisource

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