Steel shelving
Abstract
Abstract A KNOCK-DOWN METAL SHELVING ASSEMBLY IS DISCLOSED CHARACTERIZED IN ONE EMBODIMENT BY SHEET METAL SHELVES HAVING DEPENDING PERIPHERAL OPPOSING SIDE FLANGES AND END FLANGES WHICH TERMINATE IN SHARPLY SQUARE END EDGES AT THE CUT-OUT CORNERS TO PROVIDE RECESSED OPENINGS TO RECEIVE SUPPORT COLUMNS WITH SIDE PORTIONS THAT ENGAGE FLAT AGAINST THE OPENING AND A SECURING CLIP IS DISCLOSED WITH A CENTRALLY APERTURED WALL THAT SPANS EACH CORNER, ENGAGES THE FLANGES THROUGH TABS AT SPACED BEARING POINTS TO HOLD THE SHELVES TO THE SUPPORT COLUMNS WITH THE SIDE FLANGES HELD ENDWISE AGAINST THE COLUMNS IN A STRESS SQUARING RELATIONSHIP IN COOPERATION WITH RELEASABLE SECURING MEANS BETWEEN THE APERTURED WALL AND THE SUPPORT COLUMN. OTHER EMBODIMENTS ARE DISCLOSED.
Inventors
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Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |