US2562906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary cell construction
Assignee: Sunoco Inc
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Filing: 1948-09-10
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Granted: 1951-08-07
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Expires: 1968-09-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Hadley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:12
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
AN ELECTRIC PRIMARY CELL TO GENERATE DIRECT ELECTRICAL CURRENT FOR USE IN PREVENTING THE ELECTROYLTIC DESTRUCTION OF UNDERGROUND METALLIC STRUCTURES AND ADAPTED TO BE CONNECTED IN SERIES WITH LIKE CELLS, COMPRISING AN ANODIC HALF-CELL INCLUDING A MAGNESIUM ELECTRODE, A DEPOLARIZER SURROUNDING SAID ELECTRODE, AND A POROUS CASING ENCLOSING SAID MAGNESIUM ELECTRODE AND THE DEPOLARIZER; A CATHODE CONSISTING OF A CONTAINER INSULATED ON GROUND CONTACT SURFACES AND ADAPTED TO ENCLOSE SAID ANODIC HALF-CELL THEREIN CONSTRUCTED OF A METAL CATHODIC TO SAID MAGNESIUM ANODE, AND A CATHODIC DEPOLARIZER FILLING SAID CONTAINER AND COVERING THE ANODIC HALF-CELL.
Claim 2
Dependent Claim
94 words
AN ELECTRIC PRIMARY CELL TO GENERATE DIRECT ELECTRICAL CURRENT FOR USE IN PREVENTING THE ELECTROYLTIC DESTRUCTION OF UNDERGROUND METALLIC STRUCTURES AND ADAPTED TO BE CONNECTED IN SERIES WITH LIKE CELLS, COMPRISING AN ANODIC HALF-CELL INCLUDING A MAGNESIUM ELECTRODE, A DEPOLARIZER SURROUNDING SAID ELECTRODE, AND A POROUS CASING ENCLOSING SAID MAGNESIUM ELECTRODE AND THE DEPOLARIZER; A CATHODE CONSISTING OF A CONTAINER INSULATED ON GROUND CONTACT SURFACES AND ADAPTED TO ENCLOSE SAID ANODIC HALF-CELL THEREIN CONSTRUCTED OF A METAL CATHODIC TO SAID MAGNESIUM ANODE, AND A CATHODIC DEPOLARIZER FILLING SAID CONTAINER AND COVERING THE ANODIC HALF-CELL.
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) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |