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US3625852A Expired / Lapsed US ⏱️ 0.0 years remaining

Marine antifouling system

Assignee: Electrocatalytic Inc
•
Filing: 1969-06-27
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Granted: 1971-12-07
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Expires: 1989-06-27
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Abstract

Abstract A marine antifouling system for boat or ship hulls having a keel and sides diverging upwardly therefrom, the antifouling system comprising a pair of laterally spaced elongated anode electrode components each mounted externally on one side of the hull substantially adjacent the keel and lengthwise thereof, an elongated cathode electrode component mounted externally on and lengthwise of the keel in spaced relationship between the anode electrode components, a source of electrical current and electrical circuit means therefor for energizing the anode electrode components with a positive potential and the cathode electrode component with a negative potential with the cathode electrode component being electrolytically common to the anode electrode components.

Inventors

  • 👤 Edward P Anderson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 23:24
CPC Classifications
B; B63; B63B; B63B59/00; B63B59/04; C; C23; C23F; C23F13/00; C23F13/02

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 31 words
A marine antifouling system according to claim 1, comprising a secondary conductor means electrically extending along the length of each anode electrode and electrically connected in parallel across each anode electrode.
Claim 2
Dependent Claim 24 words
A marine antifouling system according to claim 1, comprising means for reversing the polarity of the said anode electrodes and the said cathode electrode.

References Cited (Backward Citations)

US843357A Cited
US2435986A Cited
US2870079A Cited
US3071531A Cited
US3303118A Cited
US3241512A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-12-06 1975-06-07 1975-12-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-12-06 1979-06-07 1979-12-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-12-06 1983-06-07 1983-12-07 $7700.00 Window Closed / Lapsed

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