US2882213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanic anode
Assignee: Dow Chemical Co
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Filing: 1957-05-06
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Granted: 1959-04-14
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Expires: 1977-05-06
Abstract
No abstract record available.
Inventors
- 👤 Douglas Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:32
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/10; C23F2213/00; C23F2213/30; C23F2213/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
AN ARTICLE FOR USE IN THE CATHODIC PROTECTION OF METAL SURFACES IMMERSED IN AN ELECTROLYTE, COMPRISING A GALVANIC ANODE ASSEMBLY INCLUDING A GALVANIC ANODE BODY, A METAL CORE BONDED INTO SAID BODY, AND A CLOSELY FITTING, ELECTRICALLY INSULATING COVERING SURROUNDING SAID ANODE BODY, SAID COVERING BEING A LAMINATED COVERING HAVING AN INNER LAYER AND AN OUTER LAYER, SAID COVERING BEING SOLUBLE IN SAID ELECTROLYTE, THE INNER LAYER BEING SUBSTANTIALLY LESS SOLUBLE IN THE ELECTROLYTE THAN IS THE OUTER LAYER, THE OUTER LAYER ENTIRELY COVERING SAID ANODE BODY.
Claim 2
Dependent Claim
87 words
AN ARTICLE FOR USE IN THE CATHODIC PROTECTION OF METAL SURFACES IMMERSED IN AN ELECTROLYTE, COMPRISING A GALVANIC ANODE ASSEMBLY INCLUDING A GALVANIC ANODE BODY, A METAL CORE BONDED INTO SAID BODY, AND A CLOSELY FITTING, ELECTRICALLY INSULATING COVERING SURROUNDING SAID ANODE BODY, SAID COVERING BEING A LAMINATED COVERING HAVING AN INNER LAYER AND AN OUTER LAYER, SAID COVERING BEING SOLUBLE IN SAID ELECTROLYTE, THE INNER LAYER BEING SUBSTANTIALLY LESS SOLUBLE IN THE ELECTROLYTE THAN IS THE OUTER LAYER, THE OUTER LAYER ENTIRELY COVERING SAID ANODE BODY.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |