US3801310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead alloy for battery grid
Assignee: VARTA AG
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Filing: 1972-10-16
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Granted: 1974-04-02
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Expires: 1992-10-16
Abstract
Abstract Lead alloy for the grids of lead storage batteries, which alloy has a low antimony content and which comprises from 1.0 to 3.5 per cent by weight Sb; 0.025 to 0.2 per cent by weight As, 0.005 to 0.1 per cent by weight Se, 0.01 to 0.05 per cent by weight Sn and the remainder lead. Preferably the alloy contains also 0.025 to 0.1 per cent by weight silver.
Inventors
- 👤 S Nijhawan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:10
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/66; H01M4/68; H01M4/685; C; C22; C22C; C22C11/00; C22C11/08; C22C11/10; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
52 words
The lead alloy of claim 1, which comprises 1.0 to 3.5 per cent by weight Sb, 0.025 to 0.2 per cent by weight As, 0.01 to 0.1 per cent by weight Se, 0.01 to 0.05 per cent by weight Sn, 0.025 to 0.1 per cent by weight Ag and the remainder lead.
Claim 2
Dependent Claim
44 words
The lead alloy of claim 1, which comprises 2.2 to 2.8 per cent by weight Sb, 0.03 to 0.06 per cent by weight As, 0.01 to 0.04 per cent by weight Se, 0.015 to 0.03 per cent by weight Sn and the remainder lead.
Claim 3
Dependent Claim
52 words
The lead alloy of claim 1, which comprises 2.2 to 2.8 per cent by weight Sb, 0.03 to 0.06 per cent by weight As, 0.1 to 0.04 per cent by weight Se, 0.015 to 0.03 per cent by weight Sn, 0.03 to 0.06 per cent by weight Ag and the remainder lead.
Claim 4
Dependent Claim
53 words
A grid for a lead storage battery comprising lead as the major constituent and about 1.0 to 3.5 per cent by weight Sb, about 0.025 to about 0.2 per cent by weight As, about 0.005 to about 0.1 per cent by weight Se, about 0.01 to about 0.05 per cent by weight Sn.
Claim 5
Dependent Claim
36 words
The grid of claim 5, which comprises in addition about 0.025 to about 0.1 per cent by weight Ag, and wherein the content of Se is from about 0.01 to about 0.04 per cent by weight.
Claim 6
Dependent Claim
54 words
The grid of claim 5, which comprises lead as the major constituent and from about 2.2 to about 2.8 per cent by weight Sb, about 0.03 to about 0.06 per cent by weight As, about 0.01 to about 0.04 per cent by weight Se, about 0.015 to about 0.03 per cent by weight Sn.
Claim 7
Dependent Claim
19 words
The grid of claim 7, which comprises in addition about 0.03 to about 0.06 per cent by weight Ag.
Claim 8
Dependent Claim
15 words
The lead alloy of claim 1, which comprises about 0.05 per cent by weight As.
Claim 9
Dependent Claim
16 words
The lead alloy of claim 1, which comprises 0.01 to 0.03 per cent by weight Sn.
Claim 10
Dependent Claim
14 words
The lead alloy of claim 10, which comprises 0.02 per cent by weight Sn.
Claim 11
Dependent Claim
51 words
The lead alloy for a gird of lead storage battery, which alloy comprises not more than 5 per cent by weight Sb, 0.025 to 0.2 per cent by weight As, 0.005 to 0.1 per cent by weight Se, 0.01 to 0.05 per cent by weight Sn and the remainder being lead.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |