valid claims

The reference in section 37 to valid claims 'thereafter maintained in compliance with the laws under which initiated, which claims may be perfected under such laws, including discovery,' at least suggests that they embrace only such substantial claims as would on compliance with the provisions of the former law ripen into ownership; such claims as might be acquired under the mining laws by location, possession and development which, if continued to discovery and entry, would entitle the claimant to a patent.