Patent US2715593A successfully refreshed from Google Patents.
US2715593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing a ceramic base with a coating of blue titania and article produced thereby
Assignee: Steatite and Porcelain Products Ltd
•
Filing: 1950-09-06
•
Granted: 1955-08-16
•
Expires: 1970-09-06
Abstract
No abstract record available.
Inventors
- 👤 Colin H W Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:36
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/52; C04B41/80; C04B41/81; C04B41/89; C04B2111/00; C04B2111/90; C04B2111/94; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A CERAMIC ELECTRICAL BASE HAVING A CONDUCTING COATING PROVIDED ON AT LEAST PART OF ITS SURFACE, THE EFFECTIVE CONDUCTING CONSTITUENT OF THE SAID COATING CONSISTING ESSENTIALLY OF BLUE TITANIA, SAID CONSTITUENT BEING PROTECTED FROM OXIDATION BY A SUBSTANTIALLY IMPERMEABLE COVER GLAZE THAT MATURES AT A TEMPERATURE ABOVE THAT AT WHICH TITANIA IS COVERTED TO ITS CONDUCTING BLUE TITANIA FORM.
Claim 2
Dependent Claim
59 words
A CERAMIC ELECTRICAL BASE HAVING A CONDUCTING COATING PROVIDED ON AT LEAST PART OF ITS SURFACE, THE EFFECTIVE CONDUCTING CONSTITUENT OF THE SAID COATING CONSISTING ESSENTIALLY OF BLUE TITANIA, SAID CONSTITUENT BEING PROTECTED FROM OXIDATION BY A SUBSTANTIALLY IMPERMEABLE COVER GLAZE THAT MATURES AT A TEMPERATURE ABOVE THAT AT WHICH TITANIA IS COVERTED TO ITS CONDUCTING BLUE TITANIA FORM.
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) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |