US4148977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanic cell employing copper ore active cathode materials
Assignee: NEXT CENTURY POWER Inc
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Filing: 1978-03-22
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Granted: 1979-04-10
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Expires: 1998-03-22
Abstract
Abstract A galvanic cell wherein the active cathode material is a simple or complex copper sulfide constituent of copper ore, copper concentrate, a matte or other intermediate material in the ore beneficiation or metal winning or refining process.
Inventors
- 👤 Morris Eisenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:51
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/581; H01M6/00; H01M6/14; H01M6/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
56 words
In a galvanic cell having a cathode, an anode and an electrolyte, the improvement comprising the active cathode material being a simple or complex copper sulfide compound contained in a copper ore whether in a natural form, in a concentrated form with at least some silica or silicate removed, or in a smelter producing matte form.
Claim 2
Dependent Claim
56 words
In a galvanic cell having a cathode, an anode and an electrolyte, the improvement comprising the active cathode material being a simple or complex copper sulfide compound contained in a copper ore whether in a natural form, in a concentrated form with at least some silica or silicate removed, or in a smelter producing matte form.
Claim 3
Dependent Claim
34 words
A galvanic cell in accordance with claim 1 in which the ore contains copper in the form of compounds selected from the group consisting of digenite, covellite, chalcopyrite, bornite, cubanite, idaite, and mixtures thereof.
Claim 4
Dependent Claim
30 words
A galvanic cell in accordance with claims 1 or 2 in which the anode is lithium and the electrolyte contains a lithium salt in an aprotic solvent or mixtures thereof.
References Cited (Backward Citations)
US3639174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |