US2657974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sand mold binders
Assignee: Monsanto Chemicals Ltd
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Filing: 1951-08-23
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Granted: 1953-11-03
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Expires: 1971-08-23
Abstract
No abstract record available.
Inventors
- 👤 Cook Robert Ruffin
- 👤 Arnold C Hatch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:40
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/205; B22C1/22; B22C1/2233; B22C1/2246; B22C1/2253
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A COMPOSITION FOR FORMING SAND MOLDS AND CORES, COMPRISING AN UNREACTED INTIMATE MIXTURE LOF FOUNDRY SAND, A SOLID, FUSIBLE THERMOSETTING RESIN BINDER AND A COMPOUND TAKEN FROM THE GROUP CONSISTING OF TETRA ALKYL, TETRA ARALKYL AND TETRA ARYL ORTHOSILICATES, SAID RESIN BEING PRESENT IN AMOUNTS RANGING FROM 5% TO 10% BY WEIGHT BASED ON THE WEIGHT OF THE SAND, AND SAID SILICATE BEING PRESENT IN AMOUNTS RANGING FROM 0.1% TO 1.0% BY WEIGHT BASED ON THE WEIGHT OF THE SAND.
Claim 2
Dependent Claim
80 words
A COMPOSITION FOR FORMING SAND MOLDS AND CORES, COMPRISING AN UNREACTED INTIMATE MIXTURE LOF FOUNDRY SAND, A SOLID, FUSIBLE THERMOSETTING RESIN BINDER AND A COMPOUND TAKEN FROM THE GROUP CONSISTING OF TETRA ALKYL, TETRA ARALKYL AND TETRA ARYL ORTHOSILICATES, SAID RESIN BEING PRESENT IN AMOUNTS RANGING FROM 5% TO 10% BY WEIGHT BASED ON THE WEIGHT OF THE SAND, AND SAID SILICATE BEING PRESENT IN AMOUNTS RANGING FROM 0.1% TO 1.0% BY WEIGHT BASED ON THE WEIGHT OF THE SAND.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |