US3516818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire refining of nickel-containing metallurgical intermediates and scrap
Assignee: Huntington Alloys Corp
•
Filing: 1968-02-29
•
Granted: 1970-06-23
•
Expires: 1988-02-29
Abstract
No abstract record available.
Inventors
- 👤 Charles E O'neill
- 👤 Paul E Queneau
- 👤 John S Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:41
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/02; C22B23/025; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US386629A
Cited
CA451735A
Cited
US1278176A
Cited
US1599424A
Cited
US1623797A
Cited
US2564498A
Cited
US2815279A
Cited
GB757081A
Cited
US3069254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |