US2536877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode
Assignee: Anaconda Copper Mining Co
•
Filing: 1947-10-17
•
Granted: 1951-01-02
•
Expires: 1967-10-17
Abstract
No abstract record available.
Inventors
- 👤 Emanuel Walter Arthur
- 👤 Sweeney Kenneth O'neill
- 👤 Weis Clarence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:56
CPC Classifications
C; C25; C25C; C25C7/00; C25C7/02; Y; Y10; Y10S; Y10S204/00; Y10S204/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE474790C
Cited
DE494193C
Cited
GB190815388A
Cited
US1871770A
Cited
US1977499A
Cited
GB471590A
Cited
US2343161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |