US3262793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory
Assignee: Kaiser Aluminum and Chemical Corp
•
Filing: 1963-11-12
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Granted: 1966-07-26
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Neely
- 👤 Jacques R Martinet
- 👤 Bowman Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:07
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1315
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
A REFRACTORY GUNNING COMPOSITION CONSISTING ESSENTIALLY OF FROM 1% TO 5% BY WEIGHT OF A SODIUM SILICATE HAVING AT LEAST TWO PARTS BY WEIGHT OF SIO2 FOR EACH PART BY WEIGHT OF NA2O, FROM 0.2% TO 1.2% OF A WATER SOLUBLE ALKALI METAL PHOSPHATE, FROM 1% TO 5% BENTONITE, THE BALANCE BEING REFRACTORY GRAIN.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |