US2979401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slip casting
Assignee: Union Carbide Corp
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Filing: 1957-12-27
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Granted: 1961-04-11
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Expires: 1977-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jan W Szymaszek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:41
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF FORMING CAST ARTICLES OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF METALS AND METALLIC COMPOUNDS, COMPRISING PROVIDING A POWDER OF SAID SELECTED MATERIAL, COATING THE PARTICLES OF SAID POWDER WITH A RESIN WHILE SUSPENDING SAID COATED PARTICLES IN A NON-POLAR ORGANIC SUSPENDING MEDIUM IN INTIMATE CONTACT WHICH A POROUS MOLD OF DESIRED SHAPE , ABSORBING SAID ORGANIC SUSPENDING MEDIUM THROUGH SAID POROUS MOLD TO FORM A GREEN CASTING OF SELECTED MATERIAL AND DESIRED SHAPE IN SAID MOLD, REMOVING SAID GREEN CASTING FROM SAID MOLD AND SINTERING SAID GREEN CASTING TO FORM A STRONG DENSE ARTICLE OF DESIRED SHAPE.
Claim 2
Independent Claim
104 words
THE METHOD OF FORMING CAST ARTICLES OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF METALS AND METALLIC COMPOUNDS, COMPRISING PROVIDING A POWDER OF SAID SELECTED MATERIAL, COATING THE PARTICLES OF SAID POWDER WITH A RESIN WHILE SUSPENDING SAID COATED PARTICLES IN A NON-POLAR ORGANIC SUSPENDING MEDIUM IN INTIMATE CONTACT WHICH A POROUS MOLD OF DESIRED SHAPE , ABSORBING SAID ORGANIC SUSPENDING MEDIUM THROUGH SAID POROUS MOLD TO FORM A GREEN CASTING OF SELECTED MATERIAL AND DESIRED SHAPE IN SAID MOLD, REMOVING SAID GREEN CASTING FROM SAID MOLD AND SINTERING SAID GREEN CASTING TO FORM A STRONG DENSE ARTICLE OF DESIRED SHAPE.
References Cited (Backward Citations)
US2698990A
Cited
US2744011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |