Patent US3669598A successfully refreshed from Google Patents.
US3669598A
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US
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Apparatus for molding and ejecting plastic articles
Assignee: Phillips Petroleum Co
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Filing: 1969-11-26
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Granted: 1972-06-13
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Expires: 1989-11-26
Abstract
Abstract METHOD AND APPARATUS FOR MOLDING AND EJECTING PLASTIC ARTICLES HAVING PROTRUSIONS EXTENDING FROM A BASE OF THE ARTICLE. MOVABLE BLADES BETWEEN THE CORE ELEMENTS ASSURE PROPER FILLING OF THE MOLD AND FUNCTION TO EJECT THE MOLDED ARTICLES FROM THE MOLD CORE SECTION.
Inventors
- 👤 Alvin S Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:53
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/56; B29C45/26; B29C45/2624; B29C45/33; B29C45/40; Y; Y10; Y10S; Y10S425/00; Y10S425/058
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |