Patent US361779A successfully refreshed from Google Patents.
US2530751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary cell
Assignee: GLADYS H BUCKLIN
•
Filing: 1947-07-28
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Granted: 1950-11-21
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Expires: 1967-07-28
Abstract
No abstract record available.
Inventors
- 👤 Edward L Anderson
- 👤 Lulu B Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:31
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PRIMARY ELECTRIC CELL COMPRISING A BODY OF ELECTROLYTE CONTAINIGN CHROMIC ACID, FIRST AND SECOND ELECTRODES IN CONTACT WITH THE BODY OF ELECTROLYTE, ONE OF THE ELECTRODES COMPRISING A BODY OF MAGNESIUM METAL, AT LEAST A SURFACE PORTION OF THE SAID ELECTRODE HAVING MERCURY ASSOCIATED WITH THE MAGNESIUM.
Claim 2
Dependent Claim
48 words
A PRIMARY ELECTRIC CELL COMPRISING A BODY OF ELECTROLYTE CONTAINIGN CHROMIC ACID, FIRST AND SECOND ELECTRODES IN CONTACT WITH THE BODY OF ELECTROLYTE, ONE OF THE ELECTRODES COMPRISING A BODY OF MAGNESIUM METAL, AT LEAST A SURFACE PORTION OF THE SAID ELECTRODE HAVING MERCURY ASSOCIATED WITH THE MAGNESIUM.
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) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |