US3490897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing low oxygen,high conductivity copper
Assignee: Olin Corp
•
Filing: 1967-10-27
•
Granted: 1970-01-20
•
Expires: 1987-10-27
Abstract
No abstract record available.
Inventors
- 👤 James E Dore
- 👤 Richard R Carey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:52
CPC Classifications
C; C22; C22B; C22B15/00; C22B15/0026; C22B15/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1965190A
Cited
US1998467A
Cited
US2056234A
Cited
GB603213A
Cited
US3282680A
Cited
US3434825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |