DRILLING APPARATUS AND METHOD

• US 3,451,493 A
• Filed: 03/29/1967
• Issued: 06/24/1969
• Est. Priority Date: 03/29/1967
• Status: Expired due to Term

• Current Assignee: James C. Storm
• Original Assignee: James C. Storm
• Inventors: Storm, James C.
• Application Number:
  US04/626,762
• Time in Patent Office: 818 Days
• US Class Current: 175/9
• CPC Class Codes: E21B 15/02 specially adapted for underwater drilling E21B15/04 takes precedence
• CPC Class Codes: E21B 19/143 specially adapted for underwater drilling
• CPC Class Codes: E21B 19/155 Handling between horizontal and vertical position
• CPC Class Codes: E21B 7/043 for underwater installations

Abstract

1,223,433. Subaqueous drilling. J. C. STORM. 2 Jan., 1968 [29 March, 1967], No. 48256/69. Divided out of 1,223,431. Heading E1F. The subject matter of this Specification is identical with that described in Specification 1,223,431 but the claims relate to the drilling platform

Claims