US2586349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal casting machine
Assignee: James B Clow & Sons
•
Filing: 1950-05-04
•
Granted: 1952-02-19
•
Expires: 1970-05-04
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Kurtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:28
CPC Classifications
B; B22; B22D; B22D13/00; B22D13/10; B22D13/101; B22D13/105; B22D13/02; B22D13/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1573089A
Cited
US1988471A
Cited
GB492240A
Cited
US2123037A
Cited
US2412601A
Cited
US2487424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |