US3582369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linings for steel ingot molds and foundry molds
Assignee: PROD METALLURG DOITTAU SA SA
•
Filing: 1968-07-18
•
Granted: 1971-06-01
•
Expires: 1988-07-18
Abstract
Abstract A LINING FOR A METALLURGICAL MOLD COMPRISING A LAYER OF AN AGGLOMERATED MIXTURE OF REFRACTORY PARTICLES OF A MEDIUM PARTICLE SIZE, OF FIBERS, AND OF A SMALL AMOUNT OF AN EXOTHERMIC MIXTURE OF A SMALL PARTICLE SIZE, SAID MIXTURE BEING AGGLOMERATED BY MEANS OF A SYNTHETIC RESIN.
Inventors
- 👤 Henry Nouveau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:01
CPC Classifications
B; B22; B22C; B22C3/00; B22D; B22D7/00; B22D7/06; B22D7/10; B22D7/104
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |