US2867004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polyamide bars in continuous process
Assignee: Onderzoekings Instituut Research
•
Filing: 1954-12-30
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Granted: 1959-01-06
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Expires: 1974-12-30
Abstract
No abstract record available.
Inventors
- 👤 Levison Robert
- 👤 Voigt Jan Lodewijk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:33
CPC Classifications
B; B29; B29B; B29B13/00; B29C; B29C48/00; B29C48/03; B29C48/06; B29C48/25; B29C48/36; B29C48/365; B29C48/37; B29C48/375; B29C48/387; B29C48/395; B29C48/78; B29C48/80; B29C48/83; B29C48/832; B29C48/86; B29C48/87; B29C48/92; B29C2948/00; B29C2948/92; B29C2948/92009; B29C2948/92314; B29C2948/92504; B29C2948/92514; B29C2948/92704; B29C2948/92819; B29C2948/92857; B29C2948/92876; B29C2948/92895; B29C2948/92952; Y; Y10; Y10S; Y10S264/00; Y10S264/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2335308A
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US2384521A
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US2540146A
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US2692405A
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US2717418A
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US2747224A
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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) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |