Core sample tube
Description
FIG. 1 is a front elevational view of a core sample tube showing my new design, the rear elevational view being a mirror image;
FIG. 2 is a top plan view;
FIG. 3 is a bottom plan view;
FIG. 4 is a left side elevational view; and
FIG. 5 is a right side elevational view thereof.
Referenced Cited
U.S. Patent Documents
D239820 | May 1976 | Retrum |
D288180 | February 10, 1987 | Shrull |
408223 | August 1889 | Draper |
3075588 | January 1963 | Mitchell |
3515230 | June 1970 | Tomaine |
3596719 | August 1971 | Koziski |
3878906 | April 1975 | Guest |
4117896 | October 3, 1978 | Weber |
4252200 | February 24, 1981 | Peterson |
4556114 | December 3, 1985 | Ryan |
4576498 | March 18, 1986 | Rassieur |
4587857 | May 13, 1986 | Bush |
4776719 | October 11, 1988 | Kreider |
Patent History
Patent number: D310491
Type: Grant
Filed: Jun 26, 1987
Date of Patent: Sep 11, 1990
Inventor: Dale Mitchell (Boynton Beach, FL)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Malin, Haley, McHale, DiMaggio & Crosby
Application Number: 7/67,460
Type: Grant
Filed: Jun 26, 1987
Date of Patent: Sep 11, 1990
Inventor: Dale Mitchell (Boynton Beach, FL)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Malin, Haley, McHale, DiMaggio & Crosby
Application Number: 7/67,460
Classifications
Current U.S. Class:
Measuring, Regulating Or Indicating Instrument, Or Casing (D10/46)