US3356276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruded composite conductor rails
Assignee: Reynolds Metals Co
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Filing: 1965-03-08
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Granted: 1967-12-05
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Expires: 1985-03-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Grover C Robinson
- 👤 Hondalus Bush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:53
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/22; B21C33/00; B21C33/004; B60; B60M; B60M1/00; B60M1/30; B60M1/302; H; H01; H01B; H01B1/00; H01B1/02; H01B1/023
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
AN INTEGRAL, EXTRUDED CONDUCTOR RAIL HAVING AT 20*C. AN AVERAGE LONGITUDINAL ELECTRICAL CONDUCTIVITY OF AT LEAST 50% IACS AND COMPRISING: A TREAD PORTION OF A FIRST ALUMINUM ALLOY CONTAINING AT LEAST 11.6% SILICON, AND HEAD, WEB, AND BASE PORTIONS OF A SECOND ALUMINUM ALLOY; SAID TREAD PORTION HAVING ONE RELATIVELY LARGE SURFACE METALLURGICALLY BONDED BY EXTRUSION TO SAID HEAD PORTION AND AN OPPOSITE SURFACE EXPOSED FOR CONTACT WITH A CURRENT COLLECTOR; SAID TREAD PORTION BEING SUBSTANTIALLY MORE ABRASION-RESISTANT THAN SAID HEAD, WEB, AND BASE PORTIONS; SAID HEAD, WEB, AND BASE PORTIONS HAVING A SUBSTANTIALLY
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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |