US2642469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline battery
Assignee: Individual
•
Filing: 1950-10-30
•
Granted: 1953-06-16
•
Expires: 1970-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Wright W Gary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:15
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/24; H01M10/30; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A BATTERY CELL CONSTRUCTION OF THE ALKALINE TYPE COMPRISING A PLURALITY OF INTERPOSED POSITIVE AND NEGATIVE PLATES, AND POSITIVE PLATES INCLUDING AN INDIVIDUALLY SEALED ENVELOPE OF POROUS MEMBRANE, THIN LAYERS OF NICKEL HYDROXIDE HYDROGEL IN A SOFT PLASTIC MASS COVERING SUBSTANTIALLY THE ENTIRE INTERNAL SURFACE OF SAID MEMBRANE, A FOIL CONDUCTOR BETWEEN SAID HYDROGEL LAYERS AND EXTENDING EXTERNALLY OF SAID ENVELOPE, SAID NEGATIVE PLATES BEING INTERPOSED BETWEEN SAID POSITIVE PLATES AND INCLUDING AN INDIVIDUALLY SEALED ENVELOE OF POROUS MEMBRANE, THIN LAYERS OF CADMIUM OXIDE COVERING SUBSTANTIALLY THE EN-
Claim 2
Dependent Claim
88 words
A BATTERY CELL CONSTRUCTION OF THE ALKALINE TYPE COMPRISING A PLURALITY OF INTERPOSED POSITIVE AND NEGATIVE PLATES, AND POSITIVE PLATES INCLUDING AN INDIVIDUALLY SEALED ENVELOPE OF POROUS MEMBRANE, THIN LAYERS OF NICKEL HYDROXIDE HYDROGEL IN A SOFT PLASTIC MASS COVERING SUBSTANTIALLY THE ENTIRE INTERNAL SURFACE OF SAID MEMBRANE, A FOIL CONDUCTOR BETWEEN SAID HYDROGEL LAYERS AND EXTENDING EXTERNALLY OF SAID ENVELOPE, SAID NEGATIVE PLATES BEING INTERPOSED BETWEEN SAID POSITIVE PLATES AND INCLUDING AN INDIVIDUALLY SEALED ENVELOE OF POROUS MEMBRANE, THIN LAYERS OF CADMIUM OXIDE COVERING SUBSTANTIALLY THE EN-
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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) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |