US3178318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing nonageing super deep-drawing steel sheets
Assignee: Yawata Iron and Steel Co Ltd
•
Filing: 1962-10-22
•
Granted: 1965-04-13
•
Expires: 1982-10-22
Abstract
No abstract record available.
Inventors
- 👤 Shimizu Mineo
- 👤 Matsukura Kameo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:04
CPC Classifications
C; C21; C21D; C21D3/00; C21D3/02; C21D3/04; C21C; C21C7/00; C21C7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2095580A
Cited
US2271242A
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US2360868A
Cited
US2444788A
Cited
US2597979A
Cited
US2776204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |