Ventilated stackable container
Abstract
Abstract A container is formed from a unitary cut and scored sheet of corrugated or other paperboard. The blank is folded along score lines and connected at a manufacturer''s joint to provide top, bottom and opposed end panels. The top panel has side flaps extending therefrom folded upon themselves to provide tapered cellular structures giving good beam strength to a top panel. The bottom panel likewise has flaps extending therefrom and folded upon themselves to provide stiffening of the bottom. The upper and lower stiffening structures are spaced to provide open sides of the container for ventilation of the contents. The sides of the end panels have flaps extending therefrom, and folded upon themselves to provide vertical stiffeners and good stacking strength. By reason of the tapered cellular structures the internal transverse cross-section of the container is essentially trapezoidal, making the container essentially suitable for tapered bundles of stalk vegetables, such as asparagus.
Inventors
- 👤 Frank E Clark
Bibliographic Details
Claims Analysis
Total Claims: 3References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |