US2838453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathodic protection means
Assignee: FA Hughes and Co Ltd
•
Filing: 1955-11-16
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Granted: 1958-06-10
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Expires: 1975-11-16
Abstract
No abstract record available.
Inventors
- 👤 Jack H P Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:54
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/48; B; B63; B63B; B63B59/00; B63B59/04; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/18; C23F13/20; C02F1/46; C02F1/461; C02F1/46104; C02F1/46109; C02F2001/46152; C02F2201/00; C02F2201/002; C02F2303/00; C02F2303/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
MEANS FOR THE CATHODIC PROTECTION OF SHIP TANKS COMPRISING A PLURALITY OF HORIZONTALLY EXTENDING ANODEBLOCKS HUNG FROM THE TOP OF THE TANK LIKE RUNGS OF A LADDER IN VERTICALLY SPACED POSITION PARALLEL TO EACH OTHER BETWEEN TWO FLEXIBLE ELECTRICALLY NON-CONDUCTING ROPES, AND FLEXIBLE METAL CONDUCTORS ELECTRICALLY CONNECTING SAID ANODES WITH EACH OTHER AND WITH THE TANK.
Claim 2
Dependent Claim
56 words
MEANS FOR THE CATHODIC PROTECTION OF SHIP TANKS COMPRISING A PLURALITY OF HORIZONTALLY EXTENDING ANODEBLOCKS HUNG FROM THE TOP OF THE TANK LIKE RUNGS OF A LADDER IN VERTICALLY SPACED POSITION PARALLEL TO EACH OTHER BETWEEN TWO FLEXIBLE ELECTRICALLY NON-CONDUCTING ROPES, AND FLEXIBLE METAL CONDUCTORS ELECTRICALLY CONNECTING SAID ANODES WITH EACH OTHER AND WITH THE TANK.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |