US3156587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary cells
Assignee: EIDP Inc
•
Filing: 1962-12-10
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Granted: 1964-11-10
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Expires: 1982-12-10
Abstract
No abstract record available.
Inventors
- 👤 Jr William R Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:32
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
A PRIMARY VOLTAIC CELL WHOSE ANODE CONTAINS AS AN ESSENTIAL COMPONENT FOR SUPPLYING ELECTRONS TO THE EXTERNAL CIRCUIT AN ORGANIC ETHYLENICALLY UNSATURATED COMPOUND CONTAINING AT LEAST ONE TERTIARY AMINO NITROGEN ATOM DIRECTLY ATTACHED TO AN ETHYLENIC CARBON ATOM, SUCH ORGANIC COMPOUND BEING FURTHER CHARACTERIZED BY BEING STABLE IN THE PRESENCE OF AQUEOUS INORGANIC SALT ELECTROLYTES, BY HAVING A MOLECULAR WEIGHT BELOW ABOUT 650, AND BY HAVING AT LEAST ONE PAIR OF ETHYLENIC CARBON ATOMS PER MOLECULE.
References Cited (Backward Citations)
US2897250A
Cited
US3110630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |