Apartment buildings and the like
Abstract
Abstract THIS PATENT DISCLOSES AN APARTMENT BUILDING THAT CAN BE ERECTED AS RAPIDLY AS THERE CAN BE ERECTED ITS CENTRAL CORE WHICH, AS HEREIN TAUGHT, COMPRISES PRECAST MEMBERS OF CONCRETE, PREFERABLY BUT NOT NECESSARILY REINFORCED WITH STEEL BARS, COMPRISING A STAIRCASE MADE IN TWO PIECES SUCH THAT THE PIECES MAY BE READILY EXTRACTED FROM THE MOLDS IN WHICH THEY ARE CAST. THE CENTRAL CORE FURTHER COMPRISES ELEVATOR-SHAFT SPACE. THE BUILDING IS SUPPORTED BY INTERNAL SEGMENTS, EACH OF PRECAST CONCRETE, PREFERABLY BUT NOT NECESSARILY INTERNALLY REINFORCED WITH STEEL BARS, WITH THE SEGMENTS BEING OF SUCH SHAPE THAT ONE MAY READILY BE SECURELY JOINED TO ANOTHER OF SIMILAR SHAPE AND IMMEDIATELY ABOVE IT, THE SEGMENTS HAVING AN ANGULAR SHAPE, SO THAT IN A FREE-STANDING STRUCTURE THERE IS OBTAINED SUPERIOR RESISTANCE TO SHEAR STRESSES, THE EXPENSE OF ORDINARILY INCIDENT TO THE SECURING IN PLACE OF INTERNAL SEGMENTS, AS BY RIVETING, BOLTING, GROUTING OR THE LIKE ALL BEING AVOIDED.
Inventors
- 👤 Joseph V Fisher
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |