Patent US3021569A successfully refreshed from Google Patents.
US3021569A
Expired / Lapsed
US
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Methods and means for making molded plastic articles
Assignee: Individual
•
Filing: 1957-01-11
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Granted: 1962-02-20
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Expires: 1977-01-11
Abstract
No abstract record available.
Inventors
- 👤 Lyman Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:59
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/10; B29C39/00; Y; Y10; Y10S; Y10S425/00; Y10S425/029; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB391230A
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US2493439A
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US2517701A
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US2664593A
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US2601700A
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US2691188A
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US2662248A
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US2694227A
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US2698968A
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US2690593A
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US2749572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |