Patent US3271501A successfully refreshed from Google Patents.
US3271501A
Expired / Lapsed
US
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Method of and means for molding plastic parts
Assignee: Republic Molding Corp
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Filing: 1965-05-28
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Granted: 1966-09-06
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Expires: 1985-05-28
Abstract
No abstract record available.
Inventors
- 👤 Edward E Heck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:14
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/26; Y; Y10; Y10S; Y10S220/00; Y10S220/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
IN THE METHOD OF MOLDING A PIECE PART HAVING AN UNDERCUT WALLED PORTION WHICH COMPRISES MAKING THE CAVITY PART AND THE CORE PART OF THE MOLD TO PRODUCE SAID PIECE PART, MOUNTING SAID CAVITY AND CORE PARTS UPON PLATENS OF A MOLDING MACHINE, THE PLATENS HAVING A SUBSTANTIALLY STRAIGHT LINE MOVEMENT TOWARD AND AWAY FROM EACH OTHER AND ANGULARLY POSITIONING SAID CAVITY AND CORE PARTS TO PROVIDE A MOUNTING FOR SAID CAVITY AND CORE PARTS UPON THE PLATENS SO AS TO BRING THE WALLS OF SAID UNDERCUT PORTION OF THE PIECE PART PARALLEL TO THE STRAIGHT LINE MOVEMENT OF SAID PLATENS.
Claim 2
Dependent Claim
101 words
IN THE METHOD OF MOLDING A PIECE PART HAVING AN UNDERCUT WALLED PORTION WHICH COMPRISES MAKING THE CAVITY PART AND THE CORE PART OF THE MOLD TO PRODUCE SAID PIECE PART, MOUNTING SAID CAVITY AND CORE PARTS UPON PLATENS OF A MOLDING MACHINE, THE PLATENS HAVING A SUBSTANTIALLY STRAIGHT LINE MOVEMENT TOWARD AND AWAY FROM EACH OTHER AND ANGULARLY POSITIONING SAID CAVITY AND CORE PARTS TO PROVIDE A MOUNTING FOR SAID CAVITY AND CORE PARTS UPON THE PLATENS SO AS TO BRING THE WALLS OF SAID UNDERCUT PORTION OF THE PIECE PART PARALLEL TO THE STRAIGHT LINE MOVEMENT OF SAID PLATENS.
Claim 3
Dependent Claim
39 words
IN COMBINATION, A CORE PART AND A CAVITY PART OF A MOLD TO PRODUCE A MOLDED PIECE PART, BOTH SAID MOLD PARTS ADAPTED TO BE MOUNTED UPON OPPOSING MOLDING MACHINE PLATENS ADAPTED TO MOVE IN A SUBSTANTIALLY STRAIGHT LINE
Claim 4
Dependent Claim
39 words
IN COMBINATION, A CORE PART AND A CAVITY PART OF A MOLD TO PRODUCE A MOLDED PIECE PART, BOTH SAID MOLD PARTS ADAPTED TO BE MOUNTED UPON OPPOSING MOLDING MACHINE PLATENS ADAPTED TO MOVE IN A SUBSTANTIALLY STRAIGHT LINE
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |