Patent US2974239A successfully refreshed from Google Patents.
US2937101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat resistant composition
Assignee: General Electric Co
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Filing: 1957-06-06
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Granted: 1960-05-17
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Expires: 1977-06-06
Abstract
No abstract record available.
Inventors
- 👤 Nelson Russell Aiken
- 👤 Zirinsky Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:59
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/34; C04B28/342
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A HIGH HEAT RESISTANT BONDED MATERIAL, POSSESSING MECHANICAL AND THERMAL-SHOCK RESISTANCE, CONSISTING ESSENTIALLY OF FUSED MAGNESIUM OXIDE PARTICLES AND PHOSPHORIC ACID, WITH THE MAGNESIUM OXIDE PARTICLES BEING FROM 50 TO 90 PARTS BY WEIGHT, AND THE ACID BEING FROM 2.15 TO 62 PARTS BY WEIGHT.
Claim 2
Dependent Claim
45 words
A HIGH HEAT RESISTANT BONDED MATERIAL, POSSESSING MECHANICAL AND THERMAL-SHOCK RESISTANCE, CONSISTING ESSENTIALLY OF FUSED MAGNESIUM OXIDE PARTICLES AND PHOSPHORIC ACID, WITH THE MAGNESIUM OXIDE PARTICLES BEING FROM 50 TO 90 PARTS BY WEIGHT, AND THE ACID BEING FROM 2.15 TO 62 PARTS BY WEIGHT.
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) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |