US3268641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for making plastic containers
Assignee: OI Glass Inc
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Filing: 1963-03-12
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Granted: 1966-08-23
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Expires: 1983-03-12
Abstract
No abstract record available.
Inventors
- 👤 Robert W King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:26
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/76; B29C49/761; B29C2949/00; B29C2949/30; B29C2949/3032; B29C2949/3041; B29L; B29L2031/00; B29L2031/712; B29L2031/7158; Y; Y10; Y10S; Y10S425/00; Y10S425/806
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
137 words
IN A METHOD OF MAKING A BLOW ARTICLE HAVING AN INJECTION MOLDED PORTION BY POSITIONING AN ANNULAR INJECTION MOLD AT AN ANNULAR EXTRUSION ORIFICE, SAID ORIFICE AND SAID MOLD BEING DEFINED BY CONCENTRIC INNER AND OUTER ELEMENTS, RESPCTIVELY, FILLING THE MOLD FROM HE ORIFICE, AND DISPLACING THE MOLD FROM THE ORIFICE TO EXTRUDE A TUBE WHICH ISS SUBSEQUENTLY BLOWN TO SHAPE, THE STEPS OF DURING FILLING OF THE MOLD ABUTTING IN FACE-TO-FACE RELATION THE INNER ELEMENTS OF THE MOLD AND THE ORIFICE, RESPECTIVELY, ANY INTERIOR FLASH FORMED DURING FILLING OCCURRING BETWEEN SAID ELEMENTS, AND FOLLOWING EXTRUSION OF THE TUBE AND PRIOR TO BLOWING OF THE TUBE, DISPLACING THE INNER MOLD ELEMENT RELATIVE TO THE REMAINDER OF SAID MOLD AND INTO THE INTERIOR OF SAID RUBE TO FORCE ANY SUCH FLASH AGAINST THE INNER PERIPHERY OF THE TUBE.
References Cited (Backward Citations)
US2706308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |