US1808098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of threads, fabrics, or other materials composed of or containing artificial filaments
Assignee: Celanese Corp
•
Filing: 1925-11-16
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Granted: 1931-06-02
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Expires: 1945-11-16
Abstract
No abstract record available.
Inventors
- 👤 Briggs John Frederick
- 👤 Palmer Charles Wilfred
- 👤 Kidd John Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:46
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/58; D06M11/64; D06M11/65; D06M11/07; D06M11/11; D06M11/13; D06M11/155; D06M11/17; D06M11/32; D06M11/36; D06M11/48; D06M11/51; D06M11/55; D06M11/56; D06M13/00; D06M13/10; D06M13/144; D06M13/148; D06M13/184; D06M13/188
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) | 1934-06-01 | 1934-12-01 | 1935-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-01 | 1938-12-01 | 1939-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-01 | 1942-12-01 | 1943-06-02 | $7700.00 | Window Closed / Lapsed |