Patent US3778334A successfully refreshed from Google Patents.
Patent US2822328A successfully refreshed from Google Patents.
US2822328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bifurcated self-baking anode and gas collection means
Assignee: Individual
•
Filing: 1953-07-20
•
Granted: 1958-02-04
•
Expires: 1973-07-20
Abstract
No abstract record available.
Inventors
- 👤 Walker John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:41
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/06; C25C3/08; C25C3/12; C25C3/125; C25C3/22; H; H05; H05B; H05B7/00; H05B7/02; H05B7/06; H05B7/08; H05B7/085; H05B7/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN ELECTRIC FURNACE COMPRISING A CATHODE SHELL ADAPTED TO RECEIVE A MELT, AN ANODE CASING, A SELF-BAKING ANODE IN SAID CASING AND ARRANGED IN OPERATIVE RELATION WITH SAID CATHODE SHELL AND DIVIDING VANE IN FIXED RELATION WITH SAID ANODE CASING AND EXTENDING VERTICALLY THROUGH THE BAKED PORTION OF SAID SELF-BAKING ANODE AND CONVERGING TO A RELATIVELY NARROW UPPER EDGE IN THE UNBAKED PORTION OF SAID SELF-BAKING ANODE, SAID VANE SERV-
Claim 2
Dependent Claim
70 words
AN ELECTRIC FURNACE COMPRISING A CATHODE SHELL ADAPTED TO RECEIVE A MELT, AN ANODE CASING, A SELF-BAKING ANODE IN SAID CASING AND ARRANGED IN OPERATIVE RELATION WITH SAID CATHODE SHELL AND DIVIDING VANE IN FIXED RELATION WITH SAID ANODE CASING AND EXTENDING VERTICALLY THROUGH THE BAKED PORTION OF SAID SELF-BAKING ANODE AND CONVERGING TO A RELATIVELY NARROW UPPER EDGE IN THE UNBAKED PORTION OF SAID SELF-BAKING ANODE, SAID VANE SERV-
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |