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The ornamental design for a hydroponic trough, as shown and described. |
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FIG. 1 is a perspective view of a hydroponic trough showing our new design, shown broken-away to indicate indeterminate length;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof; and
FIG. 5 is an end elevational view thereof, the opposite end being identical in appearance.
Scott, Eion G., Miller, William M., Foote, Kenneth R.
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| D316010, | Feb 16 1989 | Compartmented serving tray | |
| D316011, | Feb 16 1989 | Food dish |
| Patent | Priority | Assignee | Title |
| 2659180, | |||
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 20 1984 | DE BERNARDI, STEFANO | CONTROL DATA CORPORATION, A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004247 | /0956 | |
| Mar 20 1984 | DE BERNARDI, STEFANO | BAUSANO & FIGLI S P A | ASSIGNMENT OF ASSIGNORS INTEREST | 004247 | /0956 | |
| Mar 23 1984 | MILLER, WILLIAM MC LACHLAN | CONTROL DATA CORPORATION, A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004247 | /0956 | |
| Mar 23 1984 | MILLER, WILLIAM MC LACHLAN | BAUSANO & FIGLI S P A | ASSIGNMENT OF ASSIGNORS INTEREST | 004247 | /0956 | |
| Apr 06 1984 | SCOTT, EION G | CONTROL DATA CORPORATION, A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004247 | /0956 | |
| Apr 06 1984 | SCOTT, EION G | BAUSANO & FIGLI S P A | ASSIGNMENT OF ASSIGNORS INTEREST | 004247 | /0956 | |
| Apr 11 1984 | Control Data Corporation | (assignment on the face of the patent) | / |
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