Patent US2691852A successfully refreshed from Google Patents.
US2691852A
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Method and apparatus for producing fibers
Assignee: Owens Corning
•
Filing: 1949-12-29
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Granted: 1954-10-19
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Expires: 1969-12-29
Abstract
No abstract record available.
Inventors
- 👤 Slayter Games
- 👤 Drummond Warren Wendell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:33
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/06; D01G1/10; D02; D02G; D02G3/00; D02G3/02; D02G3/16; D02G3/18; Y; Y10; Y10S; Y10S83/00; Y10S83/913; Y10T; Y10T83/00; Y10T83/263
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL4171C
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DE101457C
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FR757025A
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US2131024A
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US2096080A
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US2234330A
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US2333267A
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US2277753A
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US2268866A
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US2287517A
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US2448499A
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US2410146A
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US2421750A
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US2584702A
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US2546230A
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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) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |