effort in pushing the invention is charged at £1,725. On considera-
tion I allow that. The two visits to England I take together. They cost £1,150, but the machinery which was their outcome is reckoned as to one-third for the rest of his business, and therefore the expenses should similarly be divided. That leaves (say) £767 attributable to the patent, and the benefit of the expenditure, which is really part of the cost of the machinery, can no more be confined to the original term of the patent than to the particular year in which the money was expended. I allow a sum of £500 at the same ratio as the direct cost of the machinery plus a small covering margin. The advertising, &., is charged for at £1,620. Having regard to the samples of advertising I saw, I qualify, with severity I admit, the rest of the evidence as to this, and allow the item at £1,000.
The amounts that I have allowed have been allowed, not because I am satisfied that they were the true amounts incurred, but because, though I am clear those sums at least have been SO far spent or used up for the purposes of the patent, the petitioner has not con- vinced me that any greater sums should be SO allowed. They are minimum allowances, which in the circumstances I treat as maximum allowances. The sum claimed for expenditure is £31,323 1s. 9d. The reductions I make in the credits are: Machinery, £1,808 11s. 5d.; fees, &., £158 15s. 11d.; visits to England, £650; advertising, £620 :-a total of £3,237 7s. 4d. Therefore the net amount I allow for expenditure is £28,085 14s. 5d. on the items in the schedule.
Then, from proved receipts, viz., £34,891 18s. 6d., take expenditure £28,085 14s. 5d., leaving a balance of receipts of £6,806 4s. 1d. That is very different from the claimed net loss of £579 6s. 6d. It is probably more than it would be if bad debts and cash discounts were proved, but I leave the petitioner to abide by his own default in this respect.
Nevertheless, it would be most unjust to let the account stand there. As it has been gone into, the petitioner is entitled to the benefit of whatever certainty has been established. It was elicited in cross-examination of the petitioner by the caveator's counsel that he has embarked about £15,000 capital in his business.