US3098293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispersion hardening of lead
Assignee: Associated Electrical Industries Ltd
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Filing: 1960-11-25
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Granted: 1963-07-23
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Expires: 1980-11-25
Abstract
No abstract record available.
Inventors
- 👤 Ebdon Denis Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:04
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/06; B; B22; B22F; B22F1/00; B22F1/17; B22F3/00; B22F3/20; B22F9/00; B22F9/16; B22F9/18; B22F9/24; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/38; C23C18/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A METHOD OF PRODUCING HARDENED LEAD ALLOY WHICH COMPRISES REMOVING THE LEAD OXIDE COATING FROM A MASS OF LEAD PARTICLES BY MEANS OF A SOLVENT, COATING THE PARTICLES WITH ONE METAL OF THE GROUP CONSISTING OF COPPER AND SILVER BY CHEMICAL DEPOSITION, THEREAFTER EXTRUDING THE LEAD PARTICLES COLD THROUGH A DIE TO FORM A PIECE OF LEAD ALLOY OF PREDETERMINED CROSS-SECTION, AND THEN ROLLING THIS EXTRUDED PIECE OF LEAD ALLOY ALONG AND ACROSS THE DIRECTION OF EXTRUSION TO FORM A THIN SHEET.
Claim 2
Independent Claim
82 words
A METHOD OF PRODUCING HARDENED LEAD ALLOY WHICH COMPRISES REMOVING THE LEAD OXIDE COATING FROM A MASS OF LEAD PARTICLES BY MEANS OF A SOLVENT, COATING THE PARTICLES WITH ONE METAL OF THE GROUP CONSISTING OF COPPER AND SILVER BY CHEMICAL DEPOSITION, THEREAFTER EXTRUDING THE LEAD PARTICLES COLD THROUGH A DIE TO FORM A PIECE OF LEAD ALLOY OF PREDETERMINED CROSS-SECTION, AND THEN ROLLING THIS EXTRUDED PIECE OF LEAD ALLOY ALONG AND ACROSS THE DIRECTION OF EXTRUSION TO FORM A THIN SHEET.
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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |