California Codes, Civil Code - CIV, Division 2 — Property, Part 4 — Acquisition of Property, Title 3 — Accession, Chapter 2 — Accession to Personal Property, Section 1029
Where one has made use of materials which in part belong to him and in part to another, in order to form a thing of a new description, without having destroyed any of the materials, but in such a way that they cannot be separated without inconvenience, the thing formed is common to both proprietors; in proportion, as respects the one, of the materials belonging to him, and as respects the other, of the materials belonging to him and the price of his workmanship.
Notes
Establishes common ownership when a person combines that person’s materials with another owner’s materials to create a new thing and the materials cannot be separated without inconvenience. Each proprietor’s share reflects that proprietor’s materials, while the maker’s share also includes the price of the workmanship.
Use as reference
Lexinter.net | California Code, Civil Code - CIV § 1029 | https://laws.lexinter.net/codes/california/civil-code/division-2/part-4/title-3/chapter-2/section-1029