US2941570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making tubes and hollow bodies of fibrous plastics
Assignee: Individual
•
Filing: 1956-11-28
•
Granted: 1960-06-21
•
Expires: 1976-11-28
Abstract
No abstract record available.
Inventors
- 👤 Oscar V Plym
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:34
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/101; Y10T156/1013; Y10T156/1028; Y10T156/103; Y10T156/1036; Y10T156/1038; Y10T156/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2649133A
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US2411542A
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US2460820A
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US2616463A
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US2678677A
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US2536182A
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US2509528A
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US2489387A
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US2674557A
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US2768920A
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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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |