US2895893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanic anode
Assignee: Dow Chemical Co
•
Filing: 1956-10-18
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Granted: 1959-07-21
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Expires: 1976-10-18
Abstract
No abstract record available.
Inventors
- 👤 Harold A Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:59
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/06; H01M4/08; H01M4/12; B; B22; B22D; B22D11/00; B22D11/008; C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A BLOCK LIKE UNITARY GALVANIC ANODE HAVING AT LEAST ONE FLAT SURFACE, A STRAIGHT STRAPLIKE METAL CORE EXTENDING THROUGH SAID NODE PARALLEL WITH SAID FLAT SURFACE, AT LEAST ONE APERTURE EXTENDING FROM SAID FLAT SURFACE THROUGH SAID CORE, SAID APERTURE BNEING SMALLER THAN THE WIDTH OF SAID CORE, AND AT LEAST A SECOND APERTURE OF LARGER DIAMETER THAN SAID FIRST MENTIONED APERTURE, SAID SECOND APERTURE BEING CONCENTRIC WITH SAID FIRST APERTURE AND EXTENDING FROM A SURFACE OF SAID ANODE OTHER THAN SAID FLAT SURFIF-01 FACE TO SAID TCORE MEMBER, SAID FIRST AND SECOND APERTURES PROVIDING A PASSAGEWAY WHICH EXTENDS BETWEEN OPPOSITELY DISPOSED SURFACES OF THE ANODE.
Claim 2
Dependent Claim
106 words
A BLOCK LIKE UNITARY GALVANIC ANODE HAVING AT LEAST ONE FLAT SURFACE, A STRAIGHT STRAPLIKE METAL CORE EXTENDING THROUGH SAID NODE PARALLEL WITH SAID FLAT SURFACE, AT LEAST ONE APERTURE EXTENDING FROM SAID FLAT SURFACE THROUGH SAID CORE, SAID APERTURE BNEING SMALLER THAN THE WIDTH OF SAID CORE, AND AT LEAST A SECOND APERTURE OF LARGER DIAMETER THAN SAID FIRST MENTIONED APERTURE, SAID SECOND APERTURE BEING CONCENTRIC WITH SAID FIRST APERTURE AND EXTENDING FROM A SURFACE OF SAID ANODE OTHER THAN SAID FLAT SURFIF-01 FACE TO SAID TCORE MEMBER, SAID FIRST AND SECOND APERTURES PROVIDING A PASSAGEWAY WHICH EXTENDS BETWEEN OPPOSITELY DISPOSED SURFACES OF THE ANODE.
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) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |