Patent US2901807A successfully refreshed from Google Patents.
US2901807A
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US
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Fixing device for holding reinforcing rods in a casting mold
Assignee: Casius Corp Ltd
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Filing: 1953-12-24
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Granted: 1959-09-01
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Expires: 1973-12-24
Abstract
No abstract record available.
Inventors
- 👤 Helmerson Knut Helmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:18
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/16; E04C5/18; B; B28; B28B; B28B23/00; B28B23/02; B28B23/022; B28B23/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191515834A
Cited
GB291838A
Cited
GB414290A
Cited
GB521826A
Cited
US2349399A
Cited
FR901688A
Cited
US2634603A
Cited
US2595123A
Cited
DE839922C
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US2571549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |