US3749598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface treated steel for the use of forming operation
Assignee: Nippon Steel Corp
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Filing: 1971-04-29
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Granted: 1973-07-31
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Expires: 1991-04-29
Abstract
Abstract SURFACE TREATED STEEL SHEET FOR USE IN A FORMING OPERATION HAVING A COATING LAYER OF A COMPOSITION, WHICH IS SOLID AT AMBIENT TEMPERATURE, COMPRISING 95-60 WEIGHT PERCENT OF A LUBRICANT COMPONENT CONSISTING OF 90-60 MOL PERCENT OF A HIGHER FATTY ACID AND 10-40 MOL PERCENT OF AN AMINE, AND 5-40 WEIGHT PERCENT OF A COUPLING AGENT, ON THE SURFACE OF THE STEEL SHEET.
Inventors
- 👤 K Kushima
- 👤 K Yahano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:53
CPC Classifications
C; C10; C10M; C10M7/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/18; C10M2207/40; C10M2207/402; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/044; C10M2215/08; C10M2215/082; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/043; C10M2225/00; C10M2225/02; C10N; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/015; C10N2050/02; C10N2050/08; C10N2050/10; Y; Y10; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |