US3238569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding die
Assignee: Phillips Petroleum Co
•
Filing: 1964-06-01
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Granted: 1966-03-08
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Jr John N Scott
- 👤 Paul J Boeke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:57
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/26; B29C45/2618; B29C45/40; B29C45/44; B29L; B29L2031/00; B29L2031/56; B29L2031/565
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
MOLDING DIE MEANS FOR FORMING INTEGRALLY A VENTINGTYPE CLOSURE CAP FROM A THERMOPLASTIC MATERIAL COMPRISING: (A) FIRST MOLDING DIE ELEMENT FOR DEFINING THE OUTER SURFACE OF SAID CLOSURE CAP; (B) SECOND MOLDING DIE ELEMENT FOR DEFINING THE INNER SURFACE OF SAID CLOSURE CAP COMPRISING: (1) A CYLINDRICAL CORE SECTION PROVIDED WITH A COUNTER-BORED UPPER END WHICH DEFINES THE OUTER SURFACE OF AN ANNULAR INCLINED LIP CAVITY; (2) AN INSERT ADAPTED TO SEAT WITHINSAID COUNTERBORED UPPER END SHAPED TO DEFINE THE INNER SURFACE OF SAID LIP CAVITY; (3) MEANS TO BIAS SAID INSERT NORMALLY TIGHTLY SEATED, DISPOSED WITHIN THE COUNTER-BORED LOWER END OF SAID CORE SECTION; (4) MEANS SECURED TO THE LOWER END OF SAID INSERT TO RETAIN SAID BIASING MEANS IN WORKING POSITION; (C) THIRD MOLDING DIE ELEMENT COMPRISING A RIGID EJECTOR SLEEVE, THE UPPER EDGE OF WHICH DEFINES AT LEAST A PORTION OF THE LOWER EDGE OF SAID CLOSURE CAP, SAID
Claim 2
Dependent Claim
152 words
MOLDING DIE MEANS FOR FORMING INTEGRALLY A VENTINGTYPE CLOSURE CAP FROM A THERMOPLASTIC MATERIAL COMPRISING: (A) FIRST MOLDING DIE ELEMENT FOR DEFINING THE OUTER SURFACE OF SAID CLOSURE CAP; (B) SECOND MOLDING DIE ELEMENT FOR DEFINING THE INNER SURFACE OF SAID CLOSURE CAP COMPRISING: (1) A CYLINDRICAL CORE SECTION PROVIDED WITH A COUNTER-BORED UPPER END WHICH DEFINES THE OUTER SURFACE OF AN ANNULAR INCLINED LIP CAVITY; (2) AN INSERT ADAPTED TO SEAT WITHINSAID COUNTERBORED UPPER END SHAPED TO DEFINE THE INNER SURFACE OF SAID LIP CAVITY; (3) MEANS TO BIAS SAID INSERT NORMALLY TIGHTLY SEATED, DISPOSED WITHIN THE COUNTER-BORED LOWER END OF SAID CORE SECTION; (4) MEANS SECURED TO THE LOWER END OF SAID INSERT TO RETAIN SAID BIASING MEANS IN WORKING POSITION; (C) THIRD MOLDING DIE ELEMENT COMPRISING A RIGID EJECTOR SLEEVE, THE UPPER EDGE OF WHICH DEFINES AT LEAST A PORTION OF THE LOWER EDGE OF SAID CLOSURE CAP, SAID
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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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |