US3616583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Column arrangement for multistory structures
Assignee: Huettenwerk Oberhausen AG
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Filing: 1969-06-09
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Granted: 1971-11-02
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Expires: 1989-06-09
Abstract
Abstract A STEEL-COLUMN ARRANGEMENT FOR MULTISTORY STEEL STRUCTURES IN WHICH THE COLUMN IS HOLLOW AND A COAXIAL INNER DUCT IS PROVIDED FOR INTRODUCING WATER PERMANENTLY OR UPON THE DEVELOPMENT OF FIRE INTO THE CHAMBER SURROUNDING THE INNER DUCT AND ENCLOSED BY THE OUTER COLUMN. AN EQUALIZING RECEPTACLE AT THE TOP OF THE COLUMN COMMUNICATES WITH THE INNER DUCT WHICH CONNECTS WITH THE SURROUNDING CIRCUMFERENTIAL SPACE AT ITS BOTTOM. A STANDPIPE OPENING ABOVE THE WATER LEVEL IN CONTAINING IS PROVIDED AT THE TOP OF THIS OUTER SPACE TO VENT VAPOR THEREFROM.
Inventors
- 👤 Hans Weineck
- 👤 Gottfried Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:48
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; E04B1/945; E04C; E04C3/00; E04C3/30; E04C3/32; E04B2001/949; Y; Y02; Y02A; Y02A20/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |