US3112540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of die-casting screws by using screw coils
Assignee: Kobe Steel Ltd
•
Filing: 1960-06-08
•
Granted: 1963-12-03
•
Expires: 1980-06-08
Abstract
No abstract record available.
Inventors
- 👤 Kaneko Kazuo
- 👤 Hisatsune Chuyo
- 👤 Kuwako Takeo
- 👤 Kobayashi Tastsuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:33
CPC Classifications
B; B22; B22D; B22D19/00; Y; Y10; Y10S; Y10S425/00; Y10S425/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1994155A
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US1715507A
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US2391527A
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US2480966A
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US2401912A
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US2607446A
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US2875486A
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US2672070A
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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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |