Patent US2433132A successfully refreshed from Google Patents.
US2433132A
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Injection molding control apparatus
Assignee: Lester Engineering Co
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Filing: 1943-12-13
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Granted: 1947-12-23
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Expires: 1963-12-13
Abstract
No abstract record available.
Inventors
- 👤 Lester Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:14
CPC Classifications
B; B22; B22D; B22D17/00; B22D17/20; B22D17/32; B29; B29C; B29C45/00; B29C45/17; B29C45/76; B29C45/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |