Patent US2406058A successfully refreshed from Google Patents.
Patent US3242060A successfully refreshed from Google Patents.
US3242060A
Expired / Lapsed
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Electroprotection of refractories
Assignee: Compagnie de Saint Gobain SA
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Filing: 1961-09-27
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Granted: 1966-03-22
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Expires: 1981-09-27
Abstract
No abstract record available.
Inventors
- 👤 Clerc Pierre Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:06
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/167; C03B5/1677; C03B5/42; C23; C23F; C23F13/00; C23F13/02; C23F13/04; C23F13/06; C23F13/08; C23F13/20; Y; Y10; Y10S; Y10S65/00; Y10S65/04; Y10S65/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE METHOD OF PROTECTING FROM CORROSION A ZIRCONIABASED REFRACTORY ELEMENT WHICH IS IN CONTACT WITH A BATH OF MOLTEN SILICATE COMPRISING, IMMERSING AN ELECTRODE WHICH IS RESISTANT TO ATTACK BY SAID MOLTEN SILICATE IN SAID BATH, CONNECTING A CONDUCTOR TO SAID REFRACTORY ELEMENT, APPLYING DIRECT CURRENT ELECTRIC POWER BETWEEN THE ELECTRODE AND SAID CONDUCTOR TO CREATE A POTENTIAL ON THE REFRACTORY ELEMENT WHICH IS NEGATIVE WITH RESPECT TO THE ELECTRODE AND THE BATH.
Claim 2
Independent Claim
73 words
THE METHOD OF PROTECTING FROM CORROSION A ZIRCONIABASED REFRACTORY ELEMENT WHICH IS IN CONTACT WITH A BATH OF MOLTEN SILICATE COMPRISING, IMMERSING AN ELECTRODE WHICH IS RESISTANT TO ATTACK BY SAID MOLTEN SILICATE IN SAID BATH, CONNECTING A CONDUCTOR TO SAID REFRACTORY ELEMENT, APPLYING DIRECT CURRENT ELECTRIC POWER BETWEEN THE ELECTRODE AND SAID CONDUCTOR TO CREATE A POTENTIAL ON THE REFRACTORY ELEMENT WHICH IS NEGATIVE WITH RESPECT TO THE ELECTRODE AND THE BATH.
References Cited (Backward Citations)
US2561818A
Cited
DE1014292B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |