Patent US2694628A successfully refreshed from Google Patents.
US2694628A
Expired / Lapsed
US
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Grid metal alloy
Assignee: NL Industries Inc
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Filing: 1951-07-14
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Granted: 1954-11-16
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Expires: 1971-07-14
Abstract
No abstract record available.
Inventors
- 👤 Carroll Alice Mary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:05
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/66; H01M4/68; H01M4/685; C; C22; C22C; C22C11/00; C22C11/06; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A GRID METAL ALLOY CONSISTING ESSENTIALLY OF FROM 0.2% TO 0.6% ANTIMONY, FROM 0.2K% TO 2.5% TIN, FROM 0.05% TO 0.75% ARSENIC, FROM 0.02% TO 0.10% COPPER, FROM 0.05% TO 0.25% SILVER, AND FROM 0.05* TO 0.25% TELLURIUM AND THE BALANCE LEAD.
Claim 2
Dependent Claim
42 words
A GRID METAL ALLOY CONSISTING ESSENTIALLY OF FROM 0.2% TO 0.6% ANTIMONY, FROM 0.2K% TO 2.5% TIN, FROM 0.05% TO 0.75% ARSENIC, FROM 0.02% TO 0.10% COPPER, FROM 0.05% TO 0.25% SILVER, AND FROM 0.05* TO 0.25% TELLURIUM AND THE BALANCE LEAD.
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) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |