US2764790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent mold for making cast link chain
Assignee: Individual
•
Filing: 1953-07-07
•
Granted: 1956-10-02
•
Expires: 1973-07-07
Abstract
No abstract record available.
Inventors
- 👤 John S Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:17
CPC Classifications
B; B22; B22D; B22D25/00; B22D25/02; B22D25/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1940173A
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US2051653A
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US2115590A
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US2204407A
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US2567649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |