Patent US2905564A successfully refreshed from Google Patents.
US2905564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-reactive refractory
Assignee: Globe Union Inc
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Filing: 1957-07-24
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Granted: 1959-09-22
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Expires: 1977-07-24
Abstract
No abstract record available.
Inventors
- 👤 Rolland R Roup
- 👤 Roger L Hitzeman
- 👤 Howard U Taylor
- 👤 Clinton L Beard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:11
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/48; C04B35/46; C04B35/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A MIXTURE FOR USE IN THE MANUFACTURE OF REFRACTORY MATERIAL NON-REACTIVE TO TITANIA AND ALKALINE EARTH TITANATE PIECES IN THE FIRING THEREOF CONSISTING ESSENTIALLY OF THE FOLLOWING IN PROPORTIONS BY WEIGHT IN THE RANGE:
Claim 2
Dependent Claim
34 words
A MIXTURE FOR USE IN THE MANUFACTURE OF REFRACTORY MATERIAL NON-REACTIVE TO TITANIA AND ALKALINE EARTH TITANATE PIECES IN THE FIRING THEREOF CONSISTING ESSENTIALLY OF THE FOLLOWING IN PROPORTIONS BY WEIGHT IN THE RANGE:
References Cited (Backward Citations)
US2483794A
Cited
US2678887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |