Patent US2839788A successfully refreshed from Google Patents.
US2839788A
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Method of making hollow plastic or rubber articles
Assignee: Individual
•
Filing: 1953-04-24
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Granted: 1958-06-24
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Expires: 1973-04-24
Abstract
No abstract record available.
Inventors
- 👤 Dembiak Matthew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:48
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/04; B29C37/00; B29C37/02; B29L; B29L2031/00; B29L2031/52; B29L2031/5209; B29L2031/5218; Y; Y10; Y10S; Y10S425/00; Y10S425/057
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2204195A
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US2310619A
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US2313985A
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US2486965A
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US2469892A
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US2659107A
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US2569157A
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US2651079A
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US2663905A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |