Patent US3717544A successfully refreshed from Google Patents.
US3717544A
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US
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Lined plastic articles
Assignee: National Can Corp
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Filing: 1970-09-14
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Granted: 1973-02-20
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Expires: 1990-09-14
Abstract
Abstract METHOD AND APPARATUS FOR MAKING LINED PLASTIC CONTAINERS IN WHICH A LINER IS PLACED OVER A BLOW CORE, A PLASTIC PARISON IS INJECTED AROUND THE BLOW CORE AND LINER IN A PARISON MOLD AND THE PARISON TOGETHER WITH THE LINER IS BLOWN IN A BLOW MOLD. THE LINERS MAY BE PREFORMED AND INSERTED OVER THE BLOW CORE BEFORE THE BLOW CORE IS PLACED IN THE PARISON MOLD.
Inventors
- 👤 E Valyl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:35
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B29C45/14008; B29C45/17; B29C45/26; B29C45/36; B32B1/00; B32B27/30; B32B27/302; B32B27/304; B32B38/00; B32B38/12; B65; B65D; B65D23/00; B65D23/02; B29C2795/00; B29C2795/002; B29C2949/00; B29C2949/07; B29C2949/073; B29C2949/0733; B29C2949/074; B29C2949/076; B29C2949/0761; B29C2949/0762; B29C2949/0767; B29C2949/0768; B29C2949/077; B29C2949/0771; B29C2949/078; B29C2949/30; B29C2949/3008; B29C2949/3012; B29C2949/3016; B29C2949/302; B29C2949/3024; B29C2949/3026; B29C49/00; B29C49/02; B29C49/06; B29C49/0665; B29C49/42; B29C49/64; B29C49/6604; B29C49/6605; B29C51/00; B29C51/14; B29K; B29K2077/00; B29K2105/00; B29K2105/25; B29K2105/253; B29K2627/00; B29K2627/08; B29K2995/00; B29K2995/0037; B29K2995/0068; B29K2995/0069; B29L; B29L2031/00; B29L2031/712; B29L2031/7158; B29L2031/716; B29L2031/722; B32B2439/00; B32B2439/02; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1379; Y10T428/1383; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 0
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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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |