US3177070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steel for drawing, and method of manufacturing this steel
Assignee: Cockerill Ougree Providence et Esperance Longdoz
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Filing: 1962-04-20
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Granted: 1965-04-06
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Expires: 1982-04-20
Abstract
No abstract record available.
Inventors
- 👤 Wacquez Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:26
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/06; C; C21; C21C; C21C5/00; C21C5/28; C22; C22C; C22C38/00; C22C38/001; C22C38/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
MILD STEEL SUITABLE FOR DEEP DRAWING HAVING A RIMMED STRUCTURE, SAID STEEL CONTAINING BETWEEN 0.25 AND 0.45% OF COPPER, LESS THAN 0.0010% OF NITROGEN, LESS THAN 0.010% OF CARBON, BETWEEN 0.20 AND 0.45% MANGANESE, LESS THAN 0.030% OF PHOSPHORUS, LESS THAN 0.025% OF SILICON, A TOTAL OF LESS THAN 0.15% OF OTHER IMPURITIES AND THE REMAINDER BEING IRON.
Claim 2
Dependent Claim
58 words
MILD STEEL SUITABLE FOR DEEP DRAWING HAVING A RIMMED STRUCTURE, SAID STEEL CONTAINING BETWEEN 0.25 AND 0.45% OF COPPER, LESS THAN 0.0010% OF NITROGEN, LESS THAN 0.010% OF CARBON, BETWEEN 0.20 AND 0.45% MANGANESE, LESS THAN 0.030% OF PHOSPHORUS, LESS THAN 0.025% OF SILICON, A TOTAL OF LESS THAN 0.15% OF OTHER IMPURITIES AND THE REMAINDER BEING IRON.
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |