US2721172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Consumable metal anodes
Assignee: F A A Hughes & Co Ltd
•
Filing: 1951-07-05
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Granted: 1955-10-18
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Expires: 1971-07-05
Abstract
No abstract record available.
Inventors
- 👤 William F Higgins
- 👤 Waite William Godfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:32
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
100 words
A CONSUMABLE METAL ANODE FOR THE GALVANIC PROTECTION OF METAL STRUCTURES COMPRISING AN ANODE BLOCK MAKE ESSENTIALLY OF MAGNESIUM OR MAGNESIUM BASE ALLOYS, A FERROUS METAL ROD HAVING ONE END EMBEDDED IN ONE END OF SAID BLOCK AND EXTENDING OUTWARDLY THEREFROM, A PROTECTIVE SHEATH SURROUNDING AND CONTACTING THE OUTER SURFACE OF SAID BLOCK AND COVERING THE END FACE FROM WHICH THE ROD EXTENDS, THE OTHER END OF THE BLOCK BEING LEFT FREE OF THE SHEATH, SAID SHEATH BEING MADE ESSENTIALLY OF MORE NOBLE ALUMINUM OR ALUMINUM BASE ALLOYS TO REDUCE THE RATE OF REACTION OF THE ANODE WITH THE ELECTROYLTE.
Claim 2
Dependent Claim
100 words
A CONSUMABLE METAL ANODE FOR THE GALVANIC PROTECTION OF METAL STRUCTURES COMPRISING AN ANODE BLOCK MAKE ESSENTIALLY OF MAGNESIUM OR MAGNESIUM BASE ALLOYS, A FERROUS METAL ROD HAVING ONE END EMBEDDED IN ONE END OF SAID BLOCK AND EXTENDING OUTWARDLY THEREFROM, A PROTECTIVE SHEATH SURROUNDING AND CONTACTING THE OUTER SURFACE OF SAID BLOCK AND COVERING THE END FACE FROM WHICH THE ROD EXTENDS, THE OTHER END OF THE BLOCK BEING LEFT FREE OF THE SHEATH, SAID SHEATH BEING MADE ESSENTIALLY OF MORE NOBLE ALUMINUM OR ALUMINUM BASE ALLOYS TO REDUCE THE RATE OF REACTION OF THE ANODE WITH THE ELECTROYLTE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |