US2873716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for lining centrifugal casting molds
Assignee: American Cast Iron Pipe Co
•
Filing: 1955-12-28
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Granted: 1959-02-17
•
Expires: 1975-12-28
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Daniel
- 👤 Jr James O Patton
- 👤 Stanley V Vines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:36
CPC Classifications
B; B22; B22D; B22D13/00; B22D13/10; B22D13/101; B22D13/102
Claims Analysis
Total Claims: 0
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US2602415A
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US2731690A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |