US3564799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shear connector for deep corrugated steel formed composite structure
Assignee: Granite City Steel Co
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Filing: 1968-12-31
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Granted: 1971-02-23
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Expires: 1988-12-31
Abstract
Abstract A SHEAR CONNECTOR FOR COMPOSITE STRUCTURES IN WHICH CONTINUOUS DEEP CORRUGATION FORM SHEETS WITH CONCRETE ARE UNITED TO THE SUPPORTING BEAMS BY THE SHEAR CONNECTOR SHAPED TO RESIST THE LOADS IN TENSION AND TO BRIDGE CORRUGATIONS SO THAT THE CONCRETE IN THE SLAB AND THE FORM SHEETS ACT TOGETHER WITH THE SUPPORTING BEAMS.
Inventors
- 👤 Richard E Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:21
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/16; E04B5/32; E04B5/36; E04B5/38; E04B5/40
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |