US3093495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnesia composraon and method of
Assignee: —
•
Filing: —
•
Granted: 1963-06-11
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Expires: 1980-06-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:27
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/66; C04B35/01; C04B35/03; C04B35/04; C04B35/043; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3205; C04B2235/3206; C04B2235/3217; C04B2235/3222; C04B2235/3231; C04B2235/3232; C04B2235/50; C04B2235/54; C04B2235/5418; C04B2235/5427; C04B2235/70; C04B2235/72; C04B2235/74; C04B2235/77; C04B2235/94
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
A SUBSTANTIALLY IMPERVIOUS, HIGH-DENSITY, REFRACTORY, FIRED CERAMIC SHAPED ARTICLE HAVING A MINIMUM DENSITY OF 2.85 G./CC., SAID ARTICLE CONSISTING ESSENTIALLY OF AT LEAST ABOUT 99% BY WEIGHT OF MAGNESIUM OXIDE AND, AS A MINERALIZER, FROM ABOUT 0.05% TO ABOUT 1% BY WEIGHT OF TITANIUM DIOXIDE BASED ON THE MAGNESIUM OXIDE.
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |