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Abstract
Abstract STRUCTURAL UNITS OF X OR Y FORMATION, SO PROPORTIONED THAT WHEN UNITS ARE CONNECTED TO ONE ANOTHER BY SIMILAR MEMBERS OF ONE UNIT BEING PIVOTALLY CONNECTED TO LIKE MEMBERS OF ANOTHER UNIT, A COLLAPSIBLE, CURVING, PANTOGRAPHIC, STRUCTURAL FRAME IS ACHIEVED, SUITABLE FOR USE AS A SHELTER FRAME. MULTIPLES OF THE FRAMES IN SPACED RELATION WITH ROOF PANELS AND FLOOR PANELS HINGEDLY ATTACHED PROVIDE COLLAPSIBLE SHELTERS. WHEN THE END MEMBERS OF FRAMES ARE CONNECTED TOGETHER, FRAMES FOR COLUMNAR STRUCTURES ARE OBTAINED. POWER MEANS MAY BE EMPLOYED TO ERECT THE SHELTERS. THE FRAMES CAN ALSO BE ARRANGED DIAMETRICALLY AT EQUI-SPACED ANGLES TO A COMMON CENTER TO PRODUCE ANOTHER FORM OF SHELTER.
Inventors
- 👤 Ronald R Schmidt
- 👤 Monty H Rial
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |