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The ornamental design for an extraction vacuum manifold, as shown and described. |
FIG. 1 is a front elevational view of an extraction vacuum manifold showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a right side elevational view thereof, the left side being a mirror image thereto;
FIG. 6 is a top and right front perspective view of another embodiment of our new design of FIGS. 1-5, wherein the sole difference is that the base plate support is omitted.
Wachob, George D., Rightnour, Robert W.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Apr 24 1986 | RIGHTNOUR, ROBERT W | SUPELCO, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 004627 | /0269 | |
Apr 25 1986 | WACHOB, GEORGE D | SUPELCO, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 004627 | /0269 | |
Apr 28 1986 | Supelco, Inc. | (assignment on the face of the patent) | / | |||
May 06 1993 | SUPELCO, INC | S A C CORPORATION | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006554 | /0035 | |
May 13 1993 | S A C CORPORATION | SUPELCO, INC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 007082 | /0090 | |
Apr 08 1997 | SUPELCO, INC | Sigma-Aldrich Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 008595 | /0174 |
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