US3082285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak resistant dry cell
Assignee: Union Carbide Corp
•
Filing: 1959-07-13
•
Granted: 1963-03-19
•
Expires: 1979-07-13
Abstract
No abstract record available.
Inventors
- 👤 Jr James W Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:42
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A LEAK RESISTANT DRY CEL OF THE LE CLANCHE TYPE WHICH IS CHARACTERIZED BY THE INCLUSION THEREIN OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, MAGNESIUM OXIDE AND A SODIUM SALT OF ABIETIC ACID, SAID MATERIAL BEING LOCATED BETWEEN THE ACTIVE ELEMENTS OF SAID CELL AND THE ENCLOSING MEMBERS OF SAID CELL, WHEREBY SAID MATERIAL, WHICH CHEMICALLY REACTS WITH ANY EXCUDED MATERIAL TO FORM AM INERT, IMMOBILE LIQUIDPROOF BARRIER IN THE PATH OF EXUDATE MIGRATION, WILL OBSTRUCT FURTHER MIGRATION OF SAID EXUDATE AND PROFIT LEAKAGE FROM SAID CELL.
Claim 2
Dependent Claim
92 words
A LEAK RESISTANT DRY CEL OF THE LE CLANCHE TYPE WHICH IS CHARACTERIZED BY THE INCLUSION THEREIN OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, MAGNESIUM OXIDE AND A SODIUM SALT OF ABIETIC ACID, SAID MATERIAL BEING LOCATED BETWEEN THE ACTIVE ELEMENTS OF SAID CELL AND THE ENCLOSING MEMBERS OF SAID CELL, WHEREBY SAID MATERIAL, WHICH CHEMICALLY REACTS WITH ANY EXCUDED MATERIAL TO FORM AM INERT, IMMOBILE LIQUIDPROOF BARRIER IN THE PATH OF EXUDATE MIGRATION, WILL OBSTRUCT FURTHER MIGRATION OF SAID EXUDATE AND PROFIT LEAKAGE FROM SAID CELL.
References Cited (Backward Citations)
US2325070A
Cited
US2332456A
Cited
US2396693A
Cited
US2552091A
Cited
US2649491A
Cited
US2641622A
Cited
US2712565A
Cited
US2707200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |