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The ornamental design for a guard for derrick apparatus, as shown and described.
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FIG. 1 is a perspective view of a design for a guard for derrick apparatus according to the present invention.
FIG. 2 is a first side perspective view of the guard of FIG. 1.
FIG. 3 is a second side perspective view of the guard of FIG. 1, opposite to the first side.
FIG. 4 is a first side view of the guard of FIG. 1.
FIG. 5 is a second side view of the guard of FIG. 1, opposite the first side shown in FIG. 4.
FIG. 6 is a top view of the guard of FIG. 1; and,
FIG. 7 is a bottom view of the guard of FIG. 1.
Folk, Robert Alden, Folk, Steven Lorne
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 28 2005 | Varco I/P, Inc. | (assignment on the face of the patent) | / | |||
| Aug 03 2005 | FOLK, STEVEN LORNE | VARCO I P, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 016888 | /0334 | |
| Aug 05 2005 | FOLK, ROBERT ALDEN | VARCO I P, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 016888 | /0334 |
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