Patent US3212749A successfully refreshed from Google Patents.
US3212749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Consumable hot top with inserts of exothermic material
Assignee: Individual
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Filing: 1964-03-24
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Granted: 1965-10-19
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Expires: 1984-03-24
Abstract
No abstract record available.
Inventors
- 👤 Bate Micheal Donald La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:32
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/06; B22D7/10; B22D7/104
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
A CONSUMABLE HOT TOP MIXTURE CONSISTING ESSENTIALLY OF ABOUT 15% BY WEIGHT OF SAWDUST, ABOUT 54% BY WEIGHT OF DOLONITE AND ABOUT 31% BY WEIGHT OF SODIUM SILICATE.
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |