US2426607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of metals
Assignee: Glencore Canada Corp
•
Filing: 1945-04-21
•
Granted: 1947-09-02
•
Expires: 1965-04-21
Abstract
No abstract record available.
Inventors
- 👤 Gronningsaeter Anton Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:48
CPC Classifications
C; C22; C22B; C22B7/00; C22B7/04; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US390785A
Cited
US542148A
Cited
US558648A
Cited
US683378A
Cited
FR579804A
Cited
US2054921A
Cited
US2054922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-01 | 1951-03-03 | 1951-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-01 | 1955-03-03 | 1955-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-01 | 1959-03-03 | 1959-09-02 | $7700.00 | Window Closed / Lapsed |