Patent US2873198A successfully refreshed from Google Patents.
US2873198A
Expired / Lapsed
US
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Hard refractory compositions
Assignee: General Electric Co
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Filing: 1958-04-17
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Granted: 1959-02-10
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Expires: 1978-04-17
Abstract
No abstract record available.
Inventors
- 👤 Edward W Goliber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:08
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/478
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A SINTERED STRONG AND HARD COMPOSITION CONSISTING ESSENTIALLY OF A LOWER OXIDE OF TITANIUM AND ALUMINA AND IN FROM ABOUT 8 TO ABOUT 20, AND THE OXYGEN CONTENT IS SUCH THAT THE ATOMIC RATIO.
Claim 2
Dependent Claim
34 words
A SINTERED STRONG AND HARD COMPOSITION CONSISTING ESSENTIALLY OF A LOWER OXIDE OF TITANIUM AND ALUMINA AND IN FROM ABOUT 8 TO ABOUT 20, AND THE OXYGEN CONTENT IS SUCH THAT THE ATOMIC RATIO.
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) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |