Patent US2811569A successfully refreshed from Google Patents.
US2811569A
Expired / Lapsed
US
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Contacting semi-metallic electrical conductors
Assignee: Milwaukee Gas Specialty Co
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Filing: 1954-12-15
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Granted: 1957-10-29
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Expires: 1974-12-15
Abstract
No abstract record available.
Inventors
- 👤 Russell E Fredrick
- 👤 Robert W Fritts
- 👤 William V Huck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:23
CPC Classifications
H; H01; H01B; H01B1/00; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
AN ARTICLE OF MANUFACTURE COMPRISING AN ELECTRICAL CONDUCTOR CONSISTING ESSENTIALLY OF LEAD AND AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF SELENIUM AND TELLURIM, THE LEAD CONTENT OF THE ELECTRICAL CONDUCTOR RANGING FROM A MINIMUM OF 61.95% BY WEIGHT AND A MAXIMUM OF 65.0% BY WEIGHT WHEN THE BALANCE IS SUBSTANTIALLY ALL TELLURIUM TO A MINIMUM OF 72.45% AND MAXIMIUM OF 75.0% BY WEIGHT WHEN THE BALANCE IS SUBSTANTIALLY ALL SELENIUM, AND A CONTACT ELECTROD OF IRON IN CONTIGUOUS ENGAGEMENT THEREWITH.
Claim 2
Dependent Claim
82 words
AN ARTICLE OF MANUFACTURE COMPRISING AN ELECTRICAL CONDUCTOR CONSISTING ESSENTIALLY OF LEAD AND AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF SELENIUM AND TELLURIM, THE LEAD CONTENT OF THE ELECTRICAL CONDUCTOR RANGING FROM A MINIMUM OF 61.95% BY WEIGHT AND A MAXIMUM OF 65.0% BY WEIGHT WHEN THE BALANCE IS SUBSTANTIALLY ALL TELLURIUM TO A MINIMUM OF 72.45% AND MAXIMIUM OF 75.0% BY WEIGHT WHEN THE BALANCE IS SUBSTANTIALLY ALL SELENIUM, AND A CONTACT ELECTROD OF IRON IN CONTIGUOUS ENGAGEMENT THEREWITH.
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) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |