Trademark applications and grants for Scientific Drilling Controls. Scientific Drilling Controls has 2 trademark applications. The latest application filed is for "a symbol or image mark"
Patent Application | Date |
---|---|
Lengthening drill string containing an instrument 4,325,438 - 06/133,319 Zuvela April 20, 1 | 1982-04-20 |
Period-modulated voltage controlled oscillator 4,178,567 - 05/903,011 Johnson December 11, 1 | 1979-12-11 |
Inclination and direction responsive apparatus 4,157,619 - 05/842,041 Zuvela June 12, 1 | 1979-06-12 |
Change in length of drill string while instrument remains therein 4,153,120 - 05/838,653 Zuvela , et al. May 8, 1 | 1979-05-08 |
Change in length of drill string containing an instrument 4,143,721 - 05/838,804 Zuvela , et al. March 13, 1 | 1979-03-13 |
Mark Image Registration | Serial | Trademark Application Date |
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![]() "Symbol/Image" 1258254 73242333 |
Symbol/Image 1979-12-10 |
![]() "EYE" 0986394 72425035 |
EYE 1972-05-22 |
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