Delaware Code Title 3. Agriculture § 3141. Registration of markings on containers

(a) Any person engaged in manufacturing, bottling or selling milk, cream or other dairy products in bottles, boxes, tins, cans or other receptacles or containers, with such person's name or names or other mark or marks, or device or devices, branded, stamped, engraved, etched, blown, impressed or otherwise produced upon such bottles, boxes, tins, cans or other receptacles or containers used by such person in the same or delivery of milk, cream or other dairy products, may file in the office of the Secretary of State a description of the name or names, marks or devices so used by such person, and cause such description to be printed once a week for 2 weeks successively in a newspaper published in the county in which the principal office or place of business of the owner shall be located.

(b) Upon legal proof being furnished the Secretary of State, a certificate shall be issued by the Secretary of State which certificate shall be competent evidence in any court of law of the State of the right of such person to the absolute use of such bottles, boxes, tins, cans, or other receptacles or containers, with such devices marked thereon, and of the publication and registration of the same.  If such person has obtained a certificate from the Secretary of State and thereafter retires from business, such person shall have the right to legally transfer the certificate to such person's successor in the business.