Inventors' & mechanics' scientific manual and patent law complete (1871)
Peck & Miatt, Chicago. [from old catalog] · Chicago, Peck & Miatt · leaf 15
atent, and also one-half thefee of $20, S25, or $40, according to the length of time forwhich the patent is desired. As soon as we can properly pre-pare the necessary papers, they will be sent to the applicant forhis signature and oath; and the other half of the fee will thenbe dae. When the… … Every applicant for jlaw to furnish a model , patent is required byin all cases where theinvention can be wholly or in part illustrated inthat way. Where the invention is an improve-ment on some known form or device, a workingmodel of the whole will be unnecessary, butthe working of the improvement…
Patents
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