The defendant’s motion for judgment of nonsuit was properly overruled. The plaintiff’s evidence was sufficient to carry the case to the jury.
Defendant’s principal assignment of error relates to the judge’s charge on the measure of damages. Exception was duly noted to the instruction given by the court that if the jury found the defendant made the agreement to pay the plaintiff for the device as alleged, and that it *697 worked satisfactorily, “then the plaintiff would be entitled to recover such sum of money as would represent the value of that invention to the defendant.”
We
are constrained to hold this instruction for error. The measure of damages was not the benefit of the device to the defendant, but the reasonable value of plaintiff’s services. This is not an action to recover for the sale of a patent right or an invention but for services rendered pursuant to request and agreement to pay therefor.
Sawyer v. Cox,
The general rule is that when there is no agreement as to the amount of compensation to be paid for services, the person performing them is entitled to recover what they are reasonably worth, based on the time and labor expended, skill, knowledge and experience involved, and other attendant circumstances, rather than on the use to be made of the result or the benefit to the person for whom the services are rendered. 71 C. J., 161;
In
Campbell County v. Howard,
The rule is fairly stated in appellant’s brief, as follows: “The correct measure of damage in this case was the reasonable value of the services rendered, taking into consideration the amount of time, work and skill required, and also the benefits, if any, resulting to the defendant, and other facts and circumstances.”
The defendant excepted to the use of the word “invention” by the *698 trial judge in referring to the contrivance and plan which plaintiff claimed to have originated. However, from the connection in which this word was used, it is apparent that it was not intended or understood to indicate technical reference to a patented device under the patent laws of the United States, but that the word was to be taken in its ordinary acceptance as meaning “a contrivance, plan or device; an original contrivance or apparatus.” Webster’s Int. Dictionary.
For the error in the judge’s instructions to the jury as herein pointed out, there must be a
New trial.
