US3330756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current conducting elements
Assignee: British Aluminum Co Ltd
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Filing: 1966-03-21
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Granted: 1967-07-11
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Expires: 1986-03-21
Abstract
No abstract record available.
Inventors
- 👤 Ransley Charles Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:16
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/64; C04B35/645; C04B35/515; C04B35/58; C04B35/5805; C04B35/58064; C04B35/58071; C25; C25C; C25C3/00; C25C3/06; C25C3/16; H; H01; H01B; H01B1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A SOLID CURRENT-CONDUCTING ELEMENT FOR USE IN THE ELECTROLYTIC PRODUCTION OF ALUMINUM WHEREIN AT LEAST A PORTION CONSISTS ESSENTIALLY OF TITANIUM DIBORIDE, AN OXYGEN IMPURITY AND COMBINED CARBON CONTENT CONSISTING ESSENTIALLY OF TITANIUM CARBIDE, THE CARBON OF SAID COMBINED CARBON CONTENT BEING PRESENT IN AN AMOUNT GREATER THAN 0.4% BY WEIGHT OF SAID PORTION, THE RELATIONSHIP OF THE OXYGEN IMPURITY AND THE CARBON OF SAID COMBINED CARBON CONTENT BEING SUCH THAT THE OXYGEN IMPURITY CONTENT IS LESS THAN (0.1+0.04XN) PERCENT BY WEIGHT WHEREIN N IS THE CARBON OF SAID COMBINED CARBON CONTENT.
Claim 2
Dependent Claim
92 words
A SOLID CURRENT-CONDUCTING ELEMENT FOR USE IN THE ELECTROLYTIC PRODUCTION OF ALUMINUM WHEREIN AT LEAST A PORTION CONSISTS ESSENTIALLY OF TITANIUM DIBORIDE, AN OXYGEN IMPURITY AND COMBINED CARBON CONTENT CONSISTING ESSENTIALLY OF TITANIUM CARBIDE, THE CARBON OF SAID COMBINED CARBON CONTENT BEING PRESENT IN AN AMOUNT GREATER THAN 0.4% BY WEIGHT OF SAID PORTION, THE RELATIONSHIP OF THE OXYGEN IMPURITY AND THE CARBON OF SAID COMBINED CARBON CONTENT BEING SUCH THAT THE OXYGEN IMPURITY CONTENT IS LESS THAN (0.1+0.04XN) PERCENT BY WEIGHT WHEREIN N IS THE CARBON OF SAID COMBINED CARBON CONTENT.
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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |