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Abstract
Abstract A FREE-STANDING, COLLAPSIBLE DISPLAY STRUCTURE, COMPRISING A PLURALITY OF PANEL UNITS, EACH OF WHICH INCLUDES A PANEL BOARD ELEMENT CARRIED IN A PERIPHERAL SUPPORTING FRAME COMPOSED OF LENGTHS OF EXTRUSIONS FORMED WITH A LONGITUDINAL CHANNEL FOR CARRYING END PORTIONS OF THE PANEL UNITS AND FOR SLIDABLY RECEIVING SUPPORTING LEGS. FLANGES EXTENDING FROM THE SUPPORTING FRAME FORM A GROOVE FOR RETAINING DISPLAY MATERIALS ON THE SURFACES OF THE PANEL BOARD ELEMENTS. THE SEVERAL PANEL UNITS ARE HINGED TOGETHER IN AN ACCORDION-LIKE FASHION, PERMITTING THE STRUCTURE TO BE COLLAPSED SO THAT THE SEVERAL UNITS ARE IN SURFACE-TO-SURFACE RELATION BUT PERMITTING THE STRUCTURE TO BE EXTENDED INTO A FREE-STANDING CONFIGURATION IN WHICH THE UNITS ARE AT AN APPROPRIATE ANGULAR RELATION TO EACH OTHER. HINGE FASTENERS ARE RECEIVED IN LONGITUDINAL CAVITIES FORMED IN THE FRAME MEMBERS.
Inventors
- 👤 William J Harris
Bibliographic Details
Claims Analysis
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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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |