Patent US5453012A successfully refreshed from Google Patents.
US3116262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic composition
Assignee: General Electric Co
•
Filing: 1961-05-19
•
Granted: 1963-12-31
•
Expires: 1981-05-19
Abstract
No abstract record available.
Inventors
- 👤 Goodman Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:29
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/02; H01C7/022; H01C7/023; H01C7/025; C; C04; C04B; C04B35/00; C04B35/01; C04B35/495; C04B35/497
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A SEMICONDUCTING CERAMIC CONSISTING ESSENTIALLY OF A FIRED COMBINATION OF METAL OXIDES IN SUCH PROPORTIONS THAT THE COMPOSITION HAS AN APPROXIMATE FORMULA FROM THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
27 words
A SEMICONDUCTING CERAMIC CONSISTING ESSENTIALLY OF A FIRED COMBINATION OF METAL OXIDES IN SUCH PROPORTIONS THAT THE COMPOSITION HAS AN APPROXIMATE FORMULA FROM THE GROUP CONSISTING OF:
References Cited (Backward Citations)
GB714965A
Cited
US2805165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |