US2991267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated sand and method of making the same
Assignee: Bean Morris and Co
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Filing: 1957-04-10
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Granted: 1961-07-04
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Expires: 1977-04-10
Abstract
No abstract record available.
Inventors
- 👤 Xarifa L Bean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:32
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/22; Y; Y10; Y10T; Y10T428/00; Y10T428/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A DRY, FREE-FLOWING, SELF-BONDING, GRANULAR COMPOSITION FOR FORMING INTO FOUNDRY CASTING MOLDS AND THE LIKE WHILE IN SAID DRY AND FREE-FLOWING STATE AND CONSISTING OF INDIVIDUALLY COATED SAND GRANULES, THE COATINGS THEREON BEING DRY AND NON-ADHESIVE FILMS OF THERMOSETTING RESIN BINDER FOR ADHERING SAID INDIVIDUAL GRANULES TOGETHER UPON ACTIVATION AND SETTING OF SAID BINDER AT THE POINTS OF CONTACT AMONG SAID GRANULES INTO A RIGID FOUNDRY MOLD BUT BEING DRY AND NON-TACKY PRIOR TO SAID ACTIVATION AND SETTING FOR MAINTAINNG SAID FREE-FLOWING CONDITION OF SAID COMPOSITION.
Claim 2
Dependent Claim
86 words
A DRY, FREE-FLOWING, SELF-BONDING, GRANULAR COMPOSITION FOR FORMING INTO FOUNDRY CASTING MOLDS AND THE LIKE WHILE IN SAID DRY AND FREE-FLOWING STATE AND CONSISTING OF INDIVIDUALLY COATED SAND GRANULES, THE COATINGS THEREON BEING DRY AND NON-ADHESIVE FILMS OF THERMOSETTING RESIN BINDER FOR ADHERING SAID INDIVIDUAL GRANULES TOGETHER UPON ACTIVATION AND SETTING OF SAID BINDER AT THE POINTS OF CONTACT AMONG SAID GRANULES INTO A RIGID FOUNDRY MOLD BUT BEING DRY AND NON-TACKY PRIOR TO SAID ACTIVATION AND SETTING FOR MAINTAINNG SAID FREE-FLOWING CONDITION OF SAID COMPOSITION.
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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |