US3511303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroslag melting and casting process
Assignee: Hoskins Manufacturing Co
•
Filing: 1966-12-27
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Granted: 1970-05-12
•
Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 Robert C Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:50
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/16; C22B9/18; B; B22; B22D; B22D23/00; B22D23/06; B22D23/10; Y; Y10; Y10S; Y10S65/00; Y10S65/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR826273A
Cited
GB504519A
Cited
US2385206A
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US2525133A
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US2848593A
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US3234608A
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US3046383A
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US3129473A
Cited
US3191251A
Cited
US3318363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |