US3022242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anode for cathodic protection systems
Assignee: Engelhard Industries Inc
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Filing: 1959-01-23
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Granted: 1962-02-20
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Expires: 1979-01-23
Abstract
No abstract record available.
Inventors
- 👤 Edward P Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:18
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/16; C23F2213/00; C23F2213/30; C23F2213/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN A CATHODIC PROTECTION SYSTEM, AN ELONGATED CORROSIN-RESISTANT BARE CONDUCTOR SERVING AS THE ANODE, A METAL OBJECT TO BE PROTECTED, MEANS INCLUDING AN INSULATING LAYER HAVING A LARGE NUMBER OF OPENINGS THERETHROUGH AND COVERING SAID CONDUCTOR FOR AVOIDING MECHANICAL CONTACT OF SAID CONDUCTOR WITH SAID METAL OBJECT, WHILE PERMITTING FLUID FLOW TO THE SURFACE OF SAID CONDUCTOR, SAID CONDUCTOR BEING WOUND AROUND SAID OBJECT, AND MEANS FOR APPLYING DIRECT PROTECTIVE CURRENT BETWEEN SAID CONDUCTOR AND SAID OBJECT.
Claim 2
Dependent Claim
77 words
IN A CATHODIC PROTECTION SYSTEM, AN ELONGATED CORROSIN-RESISTANT BARE CONDUCTOR SERVING AS THE ANODE, A METAL OBJECT TO BE PROTECTED, MEANS INCLUDING AN INSULATING LAYER HAVING A LARGE NUMBER OF OPENINGS THERETHROUGH AND COVERING SAID CONDUCTOR FOR AVOIDING MECHANICAL CONTACT OF SAID CONDUCTOR WITH SAID METAL OBJECT, WHILE PERMITTING FLUID FLOW TO THE SURFACE OF SAID CONDUCTOR, SAID CONDUCTOR BEING WOUND AROUND SAID OBJECT, AND MEANS FOR APPLYING DIRECT PROTECTIVE CURRENT BETWEEN SAID CONDUCTOR AND SAID OBJECT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |