Patent US6264663B1 successfully refreshed from Google Patents.
US2883708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of carbon blocks for use as electrodes
Assignee: Elektrokemisk AS
•
Filing: 1955-03-09
•
Granted: 1959-04-28
•
Expires: 1975-03-09
Abstract
No abstract record available.
Inventors
- 👤 Sem Mathias Ovrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:15
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/06; C25C3/08; H; H01; H01M; H01M4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
THE METHOD OF PRODUCING MOLDED BODIES ADAPTED FOR USE AS ELECTRODES AND THE LIKE WHICH COMPRISES MIXING PARTICLES OF CARBONACEOUS MATERIAL WITH A TAR-LIKE BINDER ADAPTED TO BE SOLIDIFIED WITH HEAT, FORMING A MASS OF SUCH MATERIAL INTO A DESIRED SHAPE, HEATING SUCH MASS TO DRIVE OFF VOLATILE INGREDIENTS FROM THE BINDER AND TO HARDEN THE MASS, AND THEN FORCING A HYDROCARBON GAS INTO AND THROUGH THE MASS OF SOLIDIFIED MATERIAL WHICH IS HEATED TO A TEMPERATURE IN EXCESS OF 600* C. BY MAINTAINING A SUBSTANTIALLY HIGHER PRESSURE ON SUCH GAS IN THE AREA WHERE IT ENTERS SUCH MASS THAN THE PRESSURE
Claim 2
Independent Claim
102 words
THE METHOD OF PRODUCING MOLDED BODIES ADAPTED FOR USE AS ELECTRODES AND THE LIKE WHICH COMPRISES MIXING PARTICLES OF CARBONACEOUS MATERIAL WITH A TAR-LIKE BINDER ADAPTED TO BE SOLIDIFIED WITH HEAT, FORMING A MASS OF SUCH MATERIAL INTO A DESIRED SHAPE, HEATING SUCH MASS TO DRIVE OFF VOLATILE INGREDIENTS FROM THE BINDER AND TO HARDEN THE MASS, AND THEN FORCING A HYDROCARBON GAS INTO AND THROUGH THE MASS OF SOLIDIFIED MATERIAL WHICH IS HEATED TO A TEMPERATURE IN EXCESS OF 600* C. BY MAINTAINING A SUBSTANTIALLY HIGHER PRESSURE ON SUCH GAS IN THE AREA WHERE IT ENTERS SUCH MASS THAN THE PRESSURE
References Cited (Backward Citations)
US1470300A
Cited
US1675674A
Cited
US2376760A
Cited
US2593741A
Cited
US2461365A
Cited
US2593751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |