US2902530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery constituents
Assignee: Bjorksten Research Laboratories Inc
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Filing: 1955-10-12
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Granted: 1959-09-01
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Expires: 1975-10-12
Abstract
No abstract record available.
Inventors
- 👤 John B Eisen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:57
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M4/381; H01M4/64; H01M4/70; H01M4/80; H01M4/806; H01M2004/026; H01M2004/027; H01M2004/028; H01M2300/00; H01M2300/0002; H01M2300/0014; H01M4/04; H01M4/0402; H01M4/0404; H01M4/043; H01M4/386; H01M4/48; H01M4/52; H01M4/58; H01M4/582; H01M4/62; H01M4/621; H01M4/66; H01M4/669; H01M50/00; H01M50/40; H01M50/46; H01M50/50; H01M50/543; H01M50/547; H01M50/55; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AN ELECTRICAL BATTERY CELL, IN WHICH ONE OF THE ELECTRODES CONSISTS OF A MAGNESIUM POWDER HELD SUBSTANTIALLY IN PLATE FORM BY MEANS OF A TWO-DIMENSIONSALLY EXTENDED FIBROUS STAINLESS STEEL MASS, AND ADHERED TO SAID MASS BY MEANS OF POLYVINYL PYYROLIDONE, PROVIDING ELECTRONIC CONTACT BETWEEN THE SAID ANODE POWER AND THE SAID STAINLESS STEEL MASS.
Claim 2
Dependent Claim
54 words
AN ELECTRICAL BATTERY CELL, IN WHICH ONE OF THE ELECTRODES CONSISTS OF A MAGNESIUM POWDER HELD SUBSTANTIALLY IN PLATE FORM BY MEANS OF A TWO-DIMENSIONSALLY EXTENDED FIBROUS STAINLESS STEEL MASS, AND ADHERED TO SAID MASS BY MEANS OF POLYVINYL PYYROLIDONE, PROVIDING ELECTRONIC CONTACT BETWEEN THE SAID ANODE POWER AND THE SAID STAINLESS STEEL MASS.
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) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |