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US3555620A
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US
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Mold for pressure injected material vented through ejector pin guides
Assignee: Individual
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Filing: 1967-10-17
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Granted: 1971-01-19
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Expires: 1987-10-17
Abstract
Abstract A MOLD FOR PRESSURE INJECTED MATERIALS GENERALLY SIMILAR TO THE MOLD DISCLOSED IN THE CO-PENDING APPLICATION OF APPLICANT, SER. NO. 496,368 FILED OCT. 15, 1965, NOW PAT. NO. 3,357,057, GRANTED DEC. 2, 1967, IN WHICH THE MOLD CAVITY OR CAVITIES IS MAINTAINED IN AN EVACUATED CONDITION WHILE BEING FILLED WITH THE INJECTED MOLTEN MATERIAL, THE MOLD OF THE PRESENT INVENTION BEING FURTHER CHARACTERIZED BY ACHIEVEMENT OF CAVITY AND OTHER EVACUATING BY MEANS DISPOSED REMOTE FROM THE MOLD AND BY AN ADDED UTILITY OF THE EJECTOR PIN GUIDING BORES AS A CAVITY EVACUATING INSTRUMENTALITY.
Inventors
- 👤 Harry R Bucy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:26
CPC Classifications
B; B22; B22D; B22D17/00; B22D17/14; B29; B29C; B29C45/00; B29C45/17; B29C45/26; B29C45/34; Y; Y10; Y10S; Y10S425/00; Y10S425/812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |