US2599628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead base alloy
Assignee: American Metal Co Ltd
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Filing: 1949-12-22
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Granted: 1952-06-10
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Expires: 1969-12-22
Abstract
No abstract record available.
Inventors
- 👤 Ritson H Graves
- 👤 James F Ednie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:55
CPC Classifications
C; C22; C22C; C22C11/00; C22C11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A LEAD BASE ALLOY CONSISTING OF ANTIMONY 16.00 TO 18.00%, SILVER 1.50 TO 2.00%, AN APPRECIABLE AMOUNT BUT LESS THAN .1% MANGANESE, AND LEAD 80.00 TO 82.00%.
Claim 2
Dependent Claim
27 words
A LEAD BASE ALLOY CONSISTING OF ANTIMONY 16.00 TO 18.00%, SILVER 1.50 TO 2.00%, AN APPRECIABLE AMOUNT BUT LESS THAN .1% MANGANESE, AND LEAD 80.00 TO 82.00%.
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) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |