US3006775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic material and method of making the same
Assignee: General Electric Co
•
Filing: 1959-09-23
•
Granted: 1961-10-31
•
Expires: 1979-09-23
Abstract
No abstract record available.
Inventors
- 👤 Franklin P H Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:45
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/16; C04B35/18; C04B35/19; C03; C03C; C03C10/00; C03C10/0018; C03C10/0027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A HARD, DENSE, MECHANICALLY STRONG, ELECTRICALLY INSULATING CERAMIC MATERIAL FORMED OF A SUBSTANTIALLY HOMOGENEOUS MICRO-CRYSTALLINE MASS OF SYNTHETIC CRYSTALS SELECTED FROM THE GROUP CONSISTING OF LITHILUM ALUMINUM SILICATE CRYSTALS AND LITHIUM SILICATE CRYSTALS, AND COMBINATIONS THEREOF, SAID MATERIAL HAVING THE FOLLOWING APPROXIMATE COMPOSITION IN PERCENT BY WEIGHT:
Claim 2
Dependent Claim
47 words
A HARD, DENSE, MECHANICALLY STRONG, ELECTRICALLY INSULATING CERAMIC MATERIAL FORMED OF A SUBSTANTIALLY HOMOGENEOUS MICRO-CRYSTALLINE MASS OF SYNTHETIC CRYSTALS SELECTED FROM THE GROUP CONSISTING OF LITHILUM ALUMINUM SILICATE CRYSTALS AND LITHIUM SILICATE CRYSTALS, AND COMBINATIONS THEREOF, SAID MATERIAL HAVING THE FOLLOWING APPROXIMATE COMPOSITION IN PERCENT 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) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |