Patent US2724733A successfully refreshed from Google Patents.
US2724733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline storage battery electrodes
Assignee: Individual
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Filing: 1952-11-01
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Granted: 1955-11-22
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Expires: 1972-11-01
Abstract
No abstract record available.
Inventors
- 👤 Hagspihl Paul
- 👤 Peters Freimut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:32
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/80; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A PROCESS OF PREPARING NEGATIVE ELECTRODES FOR ALKALINE STORAGE BATTERIES, THE STEPS OF PLATING THE SURFACE OF AN IRON REINFORCING MEMBER, SERVING AS REINFORCEMENT FOR A POROUS CARRIER BODY IN WHICH THE ACTIVE ELECTRODE MATERIAL SELECTED FROM THE GROUP CONSISTING OF IRON, CADMIUM, OXIDES OF IRON, OXIDES OF CADMIUM AND MIXTURES THEREOF IS DISTRIBUTED, AND BEING ELECTROCHEMICALLY REACTIVE WITH ALKALINE ELECTROLYTE, WITH A MATERIAL ELECTROCHEMICALLY NON-REACTIVE WITH ALKALINE ELECTROLYTE AND BEING SELECTED FROM THE GROUP CONSISTING OF NICKEL AND CHROMIUM, SO AS TO FORM A SURFACE OF THE SAME ON SAID IRON REINFORCING MEMBER WHILE AVOIDING ELECTROCHEMICAL REACTION BETWEEN SAID IRON REINFORCING MEMBER AND ALKALINE ELECTROLYTE, ROUGHENING THE THUS FORMED SURFACE OF SAID IRON REINFORCING MEMBER SO AS TO FORM
Claim 2
Dependent Claim
121 words
IN A PROCESS OF PREPARING NEGATIVE ELECTRODES FOR ALKALINE STORAGE BATTERIES, THE STEPS OF PLATING THE SURFACE OF AN IRON REINFORCING MEMBER, SERVING AS REINFORCEMENT FOR A POROUS CARRIER BODY IN WHICH THE ACTIVE ELECTRODE MATERIAL SELECTED FROM THE GROUP CONSISTING OF IRON, CADMIUM, OXIDES OF IRON, OXIDES OF CADMIUM AND MIXTURES THEREOF IS DISTRIBUTED, AND BEING ELECTROCHEMICALLY REACTIVE WITH ALKALINE ELECTROLYTE, WITH A MATERIAL ELECTROCHEMICALLY NON-REACTIVE WITH ALKALINE ELECTROLYTE AND BEING SELECTED FROM THE GROUP CONSISTING OF NICKEL AND CHROMIUM, SO AS TO FORM A SURFACE OF THE SAME ON SAID IRON REINFORCING MEMBER WHILE AVOIDING ELECTROCHEMICAL REACTION BETWEEN SAID IRON REINFORCING MEMBER AND ALKALINE ELECTROLYTE, ROUGHENING THE THUS FORMED SURFACE OF SAID IRON REINFORCING MEMBER SO AS TO FORM
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) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |