US1889061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of new or improved fabrics
Assignee: Celanese Corp
•
Filing: 1927-03-17
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Granted: 1932-11-29
•
Expires: 1947-03-17
Abstract
No abstract record available.
Inventors
- 👤 Dickie William Alexander
- 👤 Halkyard Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:09
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/02; D06M13/03; D06M13/07
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) | 1935-11-29 | 1936-05-30 | 1936-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-29 | 1940-05-30 | 1940-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-29 | 1944-05-30 | 1944-11-29 | $7700.00 | Window Closed / Lapsed |