Patent US2334288A successfully refreshed from Google Patents.
US2334288A
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Apparatus for the treatment of artificial materials
Assignee: Celanese Corp
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Filing: 1942-07-29
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Granted: 1943-11-16
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Expires: 1962-07-29
Abstract
No abstract record available.
Inventors
- 👤 Raymond D Reel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:55
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/74; D; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D5/00; D01D5/12; D01D5/16; D01F; D01F11/00; D01F11/02; D01F2/00; D01F2/24; D01F2/28; D02; D02J; D02J1/00; D02J1/22; D02J1/222; D02J1/225; D02J1/227
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) | 1946-11-15 | 1947-05-17 | 1947-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-11-15 | 1951-05-17 | 1951-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-11-15 | 1955-05-17 | 1955-11-16 | $7700.00 | Window Closed / Lapsed |