US2077078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of staple fiber yarns from continuous filaments
Assignee: Celanese Corp
•
Filing: 1934-05-18
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Granted: 1937-04-13
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Expires: 1954-05-18
Abstract
No abstract record available.
Inventors
- 👤 Taylor William Ivan
- 👤 Woodruff Alfred Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:36
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/06; D01G1/10
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) | 1940-04-12 | 1940-10-12 | 1941-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-04-12 | 1944-10-12 | 1945-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-04-12 | 1948-10-12 | 1949-04-13 | $7700.00 | Window Closed / Lapsed |