Patent US3668040A successfully refreshed from Google Patents.
Patent US3553798A successfully refreshed from Google Patents.
US3553798A
Expired / Lapsed
US
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Apparatus for producing precast concrete members
Assignee: A R Industries Inc
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Filing: 1968-01-02
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Granted: 1971-01-12
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Expires: 1988-01-02
Abstract
Abstract A MACHINE FOR MANUFACTURING PRECAST REINFORCED CONCRETE STRUCTURES BY FEEDING A SUPPORTING PLATEN BENEATH A MOVABLE MOLD BOX, LOWERING THE MOLD BOX ONTO THE PLATEN, LOCATING REINFORCING RODS WITHIN THE MOLD BOX, FILLING THE MOLD WITH CONCRETE MIX, COMPACTING AND SIZING THE MIX WITHIN THE MOLD, REMOVING THE MOLD, AND FEEDING THE PALLET AND MOLDED PRODUCT OUT OF THE MACHINE.
Inventors
- 👤 Albert C Reckman
- 👤 Herman F Barklage
- 👤 George T Shotwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:55
CPC Classifications
B; B28; B28B; B28B23/00; B28B23/02; B28B23/022; B28B13/00; B28B13/02; B28B13/0215; B28B13/023; B28B13/0235; B28B15/00; B28B15/005; B28B3/00; B28B3/02; B28B3/022; B28B7/00; B28B7/24; B28B7/241
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |