US2845470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery
Assignee: Individual
•
Filing: 1954-11-26
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Granted: 1958-07-29
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Expires: 1974-11-26
Abstract
No abstract record available.
Inventors
- 👤 Lloyd E Haskell
- 👤 Clifford W Mell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:38
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/76; H01M4/762; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
AN ELECTRODE FOR ALKALINE TYPE ELECTRIC BATTERY COMPRISING A PAIR OF GENERALLY RECTANGULAR AND FLAT ROTARY WALLS OF RELATIVELY THIN METAL MINUTELY PERFORATED THROUGHOUT THEIR ENTIRE AREA, EACH WALL BEING FORMED WITH A SERIES OF LINEAR OFFSETS PROVIDING RIBS ON THE CONVEX SIDE AND CHANNELS ON THE CONCAVE SIDE, SAID OFFSETS BEING PARALLEL TO EACH OTHER AND EXTENDING TRANSVERSELY OF THE WALL, SAID WALLS BEING POSITIONED WITH THEIR EDGES COINCIDENT, THE RIBS ON ONE WALL COINCIDING IN SIZE AND POSITION WITH RIBS ON THE OTHER WALL AND BEING IN MUTUAL CONTACT AND SECURED TOGETHER TO HOLD THE WALLS WITH PORTIONS THEREOF BETWEEN THE OFFSETS IN SPACED APART SUBSTANTIALLY PARALLEL RELATIONSHIP AND THE OFFSETS PROVIDING BARRIERS DIVIDING THE SPACE BETWEEN SAID WALLS INTO A PLURALITY OF POCKETS SEPARATED BY SAID BARRIERS FOR RECEIVING AN ACTIVE ELECTROLYTIC MATERIAL, THE CHANNELS BEING EXTERNAL OF THE ASSEMBLED WALLS AND ADAPTED FOR OCCUPANCY AND MOVEMENT OF ELECTROLYTE LIQUID.
Claim 2
Dependent Claim
153 words
AN ELECTRODE FOR ALKALINE TYPE ELECTRIC BATTERY COMPRISING A PAIR OF GENERALLY RECTANGULAR AND FLAT ROTARY WALLS OF RELATIVELY THIN METAL MINUTELY PERFORATED THROUGHOUT THEIR ENTIRE AREA, EACH WALL BEING FORMED WITH A SERIES OF LINEAR OFFSETS PROVIDING RIBS ON THE CONVEX SIDE AND CHANNELS ON THE CONCAVE SIDE, SAID OFFSETS BEING PARALLEL TO EACH OTHER AND EXTENDING TRANSVERSELY OF THE WALL, SAID WALLS BEING POSITIONED WITH THEIR EDGES COINCIDENT, THE RIBS ON ONE WALL COINCIDING IN SIZE AND POSITION WITH RIBS ON THE OTHER WALL AND BEING IN MUTUAL CONTACT AND SECURED TOGETHER TO HOLD THE WALLS WITH PORTIONS THEREOF BETWEEN THE OFFSETS IN SPACED APART SUBSTANTIALLY PARALLEL RELATIONSHIP AND THE OFFSETS PROVIDING BARRIERS DIVIDING THE SPACE BETWEEN SAID WALLS INTO A PLURALITY OF POCKETS SEPARATED BY SAID BARRIERS FOR RECEIVING AN ACTIVE ELECTROLYTIC MATERIAL, THE CHANNELS BEING EXTERNAL OF THE ASSEMBLED WALLS AND ADAPTED FOR OCCUPANCY AND MOVEMENT OF ELECTROLYTE LIQUID.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |