US3669601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for injection molding
Assignee: Individual
•
Filing: 1970-09-30
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Granted: 1972-06-13
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Expires: 1990-09-30
Abstract
Abstract AN INJECTION MOLDING MACHINE INCORPORATING AT LEAST TWO PAIRS OF MATING MOLDING DIES SANDWICHED BETWEEN A PAIR OF PRESS PLATENS, THE EXTRUDER BEING PROVIDED WITH A RECIPROCAL MANIFOLD HAVING NOZZLES TO COOPERATE WITH EACH OF THE PAIRS OF MOLDS, THE MANIFOLD BEING MOVABLE TO AN ADVANCED POSITION FOR INJECTION AND TO A RETRACTED POSITION TO PERMIT OPENING OF THE MOLD PAIRS. D R A W I N G
Inventors
- 👤 Bruno Lainesse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:59
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/03; B29C45/12; B29C45/125; B29C45/17; B29C45/20; B29C45/22; B29C45/26; B29C45/32
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) | 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 |