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The ornamental design for a structural beam for concrete form systems, as shown and described. |
FIG. 1 is a front perspective view of a structural beam for concrete form systems showing my new design;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a cross-sectional view taken along line 5--5 of FIG. 3.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jan 04 1990 | MCCRACKEN, ROBERT G | Economy Forms Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 005250 | /0633 | |
Jan 05 1990 | Wilian Holding Company | (assignment on the face of the patent) | / | |||
Dec 05 1990 | ECONOMY FORMS CORPORATION, A CORP OF IA | WILIAN HOLDING COMPANY, A CORP OF IOWA | ASSIGNMENT OF ASSIGNORS INTEREST | 005570 | /0009 | |
Oct 29 1997 | Symons Corporation | BANK ONE, N A | SECURITY AGREEMENT | 008792 | /0089 | |
Jun 16 2000 | Symons Corporation | Bankers Trust Company | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 011019 | /0638 | |
Dec 05 2003 | BANK ONE, N A | DUR-O-WAL, INC | RELEASE OF SECURITY INTEREST | 014901 | /0052 |
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