...location and acquisition of title became available only on a lease basis, but a Saving Clause covered valid claims existent on February 25, 1920, "and thereafter maintained in compliance with the laws under which initiated." All the claims involved in this suit were canceled by the Secretary of...

...provided In this chapter, except as provided in sections 1716 and 1719 of title 43, and except as to valid claims existent on February 25, 1920, and thereafter maintained in compliance with the laws under which Initiated, which claims may be perfected under such laws, including discovery. (Feb....

...sections 181-194, 201, 202-208, 211-214, 223-229, 241, 251, and 261-263 of this title, except as to valid claims existent on February 25, 1920, and thereafter maintained in compliance with the laws under which initiated, which claims may be perfected under such laws, including discovery. (Feb....

...the Mineral Leasing Act, or by reason of section 37 of the act, which excepted from its provisions "valid claims existent on February 25, 1920, and thereafter maintained in compliance with the laws under which initiated, which claims may be perfected under such laws, including discovery," *...

...* shall be subject to disposition only in the form and manner provided in this chapter except as to valid claims existent on February 25, 1920, and thereafter maintained in compliance with the laws under which Initiated, which claims may be perfected under such laws, Including discovery." not...

...shall be subject to disposition only in the form and manner provided in this chapter, except as to valid claims existent on February 25, 1920, and thereafter maintained in compliance with the laws under which initiated, which claims may be perfected under such laws, including discovery. (Feb....

...shall be subject to disposition only in the form and manner provided in this chapter, except as to valid claims existent on February 25, 1920, and thereafter maintained in compliance with the laws under which initiated, which claims may be perfected under such laws, including discovery. (Feb....

...1920 Mineral Leasing Act, Section 37 (30 USC J33) protected coal and other deposits on "valid clalras existent on February 25, 1920, and thereafter maintained In compliance with the laws under which Initiated, which claims may be perfected under such laws. Including discovery." Section...

...located before 1920, and thus were protected by the savings clause in the 1920 act as long as they were 'Valid claims existent on February 25, 1920, and thereafter maintained in compliance with the laws under which initiated, which claims may be perfected under such laws, including discovery." I38...

...oil shale mining claims have absolutely no constitutionally protected property rights in them unless the claims were valid (a) when the Mineral Leasing...unless the claimant can show a discovery of valuable deposits of oil shale in 1920 and today, as well as compliance with the other requirements of the Mining...