US2856342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-corrosion anode
Assignee: Shell Development Co
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Filing: 1954-11-08
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Granted: 1958-10-14
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Expires: 1974-11-08
Abstract
No abstract record available.
Inventors
- 👤 Hoeven Hendrik Willem Van Der
- 👤 Oudeman Marinus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:29
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/10; C23F2213/00; C23F2213/30; C23F2213/31; C23F2213/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
79 words
A CONSUMABLE METAL ANODE FOR THE PROTECTION OF A METAL SURFACE CORRODIBLE BY AN ELECTROLYTE IN CONTACT THEREWITH, SAID METAL ANODE BEING ANODIC WITH RESPECT TO THE METAL SURFACE TO BE PROTECTED, CHARACTERIZED IN THAT THE ANODE IS OF A MULTISIDED SHAPE BOUNDED BY A SMALLER AND A LARGER PARALLELOGRAM PARALLEL TO EACH OTHER AND CONNECTED BY FOUR SURFACES, THE FOUR SURFACES AND THE LARGER PARALLELOGRAM BEING ELECTRICALLY INSULATED FROM EXTERNAL CONTACT AND THE SMALLER PARALLELOGRAM BEING ELECTRICALLY EXPOSED.
Claim 2
Dependent Claim
79 words
A CONSUMABLE METAL ANODE FOR THE PROTECTION OF A METAL SURFACE CORRODIBLE BY AN ELECTROLYTE IN CONTACT THEREWITH, SAID METAL ANODE BEING ANODIC WITH RESPECT TO THE METAL SURFACE TO BE PROTECTED, CHARACTERIZED IN THAT THE ANODE IS OF A MULTISIDED SHAPE BOUNDED BY A SMALLER AND A LARGER PARALLELOGRAM PARALLEL TO EACH OTHER AND CONNECTED BY FOUR SURFACES, THE FOUR SURFACES AND THE LARGER PARALLELOGRAM BEING ELECTRICALLY INSULATED FROM EXTERNAL CONTACT AND THE SMALLER PARALLELOGRAM BEING ELECTRICALLY EXPOSED.
Claim 3
Dependent Claim
77 words
A CONSUMABLE METAL ANODE FOR THE PROTECTION OF A METAL SURFACE CORRODIBLE BY AN ELECTROLYTE IN CONTACT THEREWITH, SAID METAL ANODE BEING ANODIC WITH RESPECT TO THE METAL SURFACE TO BE PROTECTED, CHARACTERIZED IN THAT THE ANODE IS OF A SEMI-CYLINDRICAL SHAPE, A SUBSTANTIAL PORTION OF THE CURVING FACE, THE TWO FLAT FACES AND THE FLAT BACK OF SAID ANODE BEING ELECTRICALLY INSULATED FROM OUTSIDE CONTACT WITH THE REMAINING PORTION OF SAID CURVING FACE BEING ELECTRICALLY EXPOSED.
Claim 4
Dependent Claim
77 words
A CONSUMABLE METAL ANODE FOR THE PROTECTION OF A METAL SURFACE CORRODIBLE BY AN ELECTROLYTE IN CONTACT THEREWITH, SAID METAL ANODE BEING ANODIC WITH RESPECT TO THE METAL SURFACE TO BE PROTECTED, CHARACTERIZED IN THAT THE ANODE IS OF A SEMI-CYLINDRICAL SHAPE, A SUBSTANTIAL PORTION OF THE CURVING FACE, THE TWO FLAT FACES AND THE FLAT BACK OF SAID ANODE BEING ELECTRICALLY INSULATED FROM OUTSIDE CONTACT WITH THE REMAINING PORTION OF SAID CURVING FACE BEING ELECTRICALLY EXPOSED.
References Cited (Backward Citations)
US1269926A
Cited
GB451088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |