Patent US2369506A successfully refreshed from Google Patents.
US2369506A
Expired / Lapsed
US
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Producing filaments from molten organic compositions
Assignee: Irvington Varnish & Insulator
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Filing: 1941-11-15
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Granted: 1945-02-13
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Expires: 1961-11-15
Abstract
No abstract record available.
Inventors
- 👤 Elmer T Weibel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:51
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/04; B; B29; B29C; B29C48/00; B29C48/001; B29C48/0018; B29C48/03; B29C48/05; B29C48/25; B29C48/36; B29C48/475
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-02-13 | 1948-08-14 | 1949-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-13 | 1952-08-14 | 1953-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-13 | 1956-08-14 | 1957-02-13 | $7700.00 | Window Closed / Lapsed |